The physical and chemical properties of elements change in predictable ways from one end of a period to another. Which of the following is true based on this feature of periodic table (p 312)?
Group of answer choices:
A : Potassium has more protons than Calcium
B : An atom of gold is smaller (atomic size) than an atom of platinum
C:The noble gases react with everything
D: Elements in Group 8 are more reactive than elements in Group 7
PLEASE AANYONE THIS IS MY LAST QUESTION ILL MARK BRAINLEST PLEASE!

Answers

Answer 1

Answer:

Are those your breast?

Explanation:

why this site


Related Questions

What is insulin and why do people with Type 1 diabetes need it to survive?

Answers

Answer:

Insulin is needed to move blood sugar (glucose) into cells. Inside the cells, glucose is stored and later used for energy. With type 1 diabetes, beta cells produce little or no insulin.

(TRUE OR FALSE)
As discoveries were made that couldn't be explained by spontaneous generations, scientist came up with an updated version of the spontaneous generation model?
PLZ HELP WILL BRAINLIEST
IF U DONT KNOW THE ANSWER DONT U DARE

Answers

Answer: I'm pretty sure this is true

Explanation:

what adaptations facilitated movement of tetrapods to land - be sure to describe challenges that these adaptations helped them overcome.

Answers

Answer:

The second neck vertebra evolved to allow rotation of the neck for moving the head left and right. As tetrapod species continued to evolve on land, adaptations included seven or more vertebrae, allowing increasing neck mobility.

Explanation:

1. Explain how forces of attraction and repulsion exist within an atom.

Answers

Answer:

Oppositely charged particles attract each other, while like particles repel one another. Electrons are kept in the orbit around the nucleus by the electromagnetic force, because the nucleus in the center of the atom is positively charged and attracts the negatively charged electrons.

Explanation:

Answer:

1. Electrons surrounding a nucleus are attracted to the protons within it because electrons and protons have opposite charges. Electrons closest to the nucleus are attracted with such a force that they can’t escape from the atom. These electrons tend to shield the protons from electrons that are farther away because electrons have the same charge and repel each other. Electrons that are farther away have less attraction to the protons within the nucleus and are more likely to be detached from the atom.

2. Electrons can be transferred from atoms of one body to atoms of another body through friction. This can occur when one body is rubbed against another or when a liquid flows across a solid. In either case, one body may be given a positive charge while the other body is given a negative charge of the same magnitude. Both charges are developed at the same time. Electrons can also be transferred from one body to another when a charged body comes into contact with an uncharged body. The electrons move in the direction that will equalize the charges; thus, the uncharged body will be given the same charge as the charged body.

3. Free electrons move from points of negative charge to points of positive charge. When these electrons move freely from one point to another with little resistance, the material they’re traveling through is said to be a conductor. Conductors have a large number of free electrons. Insulators, on the other hand, have very few free electrons and offer great resistance to the movement of these electrons. Electric charges produced on one end of a body composed of insulating materials will most likely not spread throughout the body. In a conductor, this charge would spread throughout the entire body. Metals are generally conductors; oils, rubber, air, porcelain, and plastics are good insulators.

4.

Lightning is produced by the rapid transfer of free electrons when one of the following conditions exist: One part of a cloud is positively charged and a neighboring part of the same cloud is negatively charged. A positively charged cloud comes near a negatively charged cloud. A cloud with either a positive charge or a negative charge comes near the earth.

Explanation:

Pennfoster answer

What is the role of adenosine triphosphate (ATP) within a cell?

A) Release carbon dioxide
B) Biological molecule that stores energy
C) Use glucose
D) Controls chemical reactions ​

Answers

Answer:

Its B. Biological molecule that stores energy

The answer is B.
Reason: ATP is essentially energy. It is a molecule that stores said energy from the cell.

List three ways in which a sperm cell differs from other cells in the
human body

Answers

A sperm cell is the smallest human cells. An egg cell and a sperm are each other opposites

Elisa feel tired because she has a condition

Answers

Answer:

I'm sorry to hear that.

Answer: Its because she has diabetes.

Explanation: Her cells are not getting enough glucose.

Stand and let your hands hang next to your sides for a few minutes. Then, look at the backs of your hands. Do you see any bumps on the surface on top of your veins? What might those be, and what are their function?​

Answers

When you stand and let your hands hang next to your sides for a few minutes, the bumps you see on your veins are the valves that help move blood to the larger veins.

What we know about vein valves.

There are valves located throughout the veins in our bodies. Most of these are located in points where smaller venules fuse with the larger veins.

Their function is to prevent blood from flowing back into the smaller veins, thus helping with the normal blood flow of the body.

Given that the veins in our bodies are littered with small valves to help the blood return to the heart correctly, we can confirm that these are the small bumps that we can see when letting our hands down for a few mins, as they fill with the blood they try not to let flow back into the smaller veins.

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EASY 10 POINTS

Why do plant cells need chloroplasts?

Answers

Answer:

Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant. In this respect they are similar to mitochondria, but are found only in plants and protista.

Explanation:

mark BRAINLIST!

thx

Part D)
Think about pushing two boxes of different weights across the floor-one box is a lot heavier than the other box. How will the amount of force change as you push each box? Explain how this relates to energy expenditure of two people-one person who's heavler than the other.

This is on plato and edmentrum. :)​

Answers

Answer:

More force is needed to push the heavier box. Likewise, people who weigh more use more energy to move their bodies than people who weigh less.

Explanation:

copied directly from edmentum/plato

Answer:

More force is needed to push the heavier box. Likewise, people who weigh more use more energy to move their bodies than people who weigh less.

Explanation:

what do you think about the human and his structure how it's made all the human structure​

Answers

Answer:

its a thousand of generation evolution i think as of darwins law of evolution

Answer:

Hey bro y have you came in my clan?

I m waiting for you....

I'll give u co leader

My id :- #LV89QRGCL

does photosynthesis occur in mushroom give a reason to support your answer​

Answers

Answer:

No

Explanation:

Although mushrooms and fungi have a cell wall like plant cells, fungi are unable to make their own food and must feed on decaying matter to gain the energy needed for survival.

Hope this helps :)

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What is a component of amino acid not contained in starch
A. Amino acids contain hydrogen.
B. Amino acids contain oxygen.
C. Amino acids contain carbon.
D. Amino acids contain nitrogen.

Answers

Answer:

D. Amino acids contain nitrogen

Explanation:

...

what position will kamala harris hold on sunday 20,2021

Answers

Answer:

Vice President?

Explanation:

Answer:

vice president she the first black woman,indian and woman to be vice president her innaguration was yesterday

Explanation:

Please help me need this before 8:00am
The questuon is in the picture

Answers

Answer:

I think the answer is D.

Explanation:

I think this because I just did the Periodic Table in school, also they are group by the same color by physical and chemical properties.

Plz help I don’t know the answer to this!!

Answers

Yea she is right its 28%

What role does intraspecies competition play in natural selection?

A. There is competition within a species for resources, and only some individuals will survive.

B. There is competition within a species for resources, and only the single most fit individual will survive. ( ITS NOT B)

C. There is competition between species for resources, and only one species will survive.

D. There is competition between species for resources, and only one individual per species will survive. ( I don't think it's this one...)

Answers

D there is competition between species

4.
______ describes the average conditions of our atmosphere over a long period
of time.

Answers

Answer:

The answer is Climate.

Answer: climate


Explanation: weather is what conditions of the atmosphere are over a short period of time, and CLIMATE is how the atmosphere “behaves” over relatively long periods of time.

Can someone pls help me with this (8th grade science)

Answers

Answer:

A

Explanation:

As he kicks the ball the speed increases, where he kicks the ball also is a factor, since he kicks it in the same direction that is why it is choice A.

What is the correct order of a food chain containing the following organisms: quail (bird), desert shrub, coyote, snake?

Answers

Answer:

desert shrub - quail - snake - coyote

Explanation:

the quail bird eats the desert shrub, the snake eats the quail, the coyote (a-pex predator in this chain) eats the snake.

Why does calcium concentration matter to a cell?

Answers

Answer:

HOPE IT MAY HELP YOU

Explanation:

Calcium-based signaling is used in many cellular and neuronal processes to initiate rapid responses to extracellular signals. Cells therefore maintain tight control over intracellular Ca2+ levels, using a variety of channels and pumps.

Answer:

to answer your question it is

Explanation:

Calcium-based signaling is used in many cellular and neuronal processes to initiate rapid responses to extracellular signals. Cells therefore maintain tight control over intracellular Ca2+ levels, using a variety of channels and pumps. ... neuron

what do you think causes different phenotypes in organisms how does the phenotype depend on its genes (genotype)​

Answers

Answer:

They difference in phenotypes is dependent on the genes. The more dominant gene will overpower a recessive gene, or if there are two recessive genes together, that will be the phenotype. When things are cross breaded they introduce different genotypes that allow for different looking phenotypes.

Example: Dominant blue flower (Bb)  mixed with recessive yellow flower (bb)

        B            b

b       Bb          bb

b       Bb          bb

There is a 50/50 chance the offspring will be either blue or yellow

The differences in phenotypes are determined by genes. The more dominant gene will completely overwhelm a recessive gene, or if two recessive genes coexist, the phenotype will be that. When things are crossbred, unique genotypes are introduced, allowing for different-looking phenotypes.

What is phenotype?

A "phenotype" is simply an observable trait. "Pheno" simply means "observe," and it derives from the same root as "phenomenon."

The differences in phenotypes are determined by genes. The more dominant gene will completely overwhelm a recessive gene, or if two recessive genes coexist, the phenotype will be that.

When things are crossbred, unique genotypes are introduced, allowing for different-looking phenotypes.

Thus, in this way, phenotype is dependent on genotype of the organism.

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what is the fundamental unit of matter?

Answers

the atom is the fundamental unit of matter.

(hope this helps ^^)

If Jamal does not sleep for four days straight, he will most likely experience __(blank)__. a) jet lag
b) psychopathic behavior
c) hallucinations
d) REM

Answers

c) hallucinations dkdjdjdjjdjd

Answer:

b? ig I mean u could experiance all, but this is an 8th grader talking what do i know?

Explanation:

Which element is not found on most main sequence stars?

Answers

Answer:

Nitrogen is the right answer.

Need help ASAP

The Crust of the earth is mostly made of.......

a.Fe and Ni
b. Silica
c. Magnesium
d. Aluminum

Answers

Answer:

b. silica

Explanation:

!!

Explanation:

A crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. The upper part of the mantle is composed mostly of peridotite, a rock denser than rocks common in the overlying crust.

Which of the following statements is true regarding electromagnetism?

All wires are electromagnetic.

Only wires carrying current are electromagnetic.

Only iron wires are electromagnetic.

Only copper wires are electromagnetic.

Answers

Answer:

Only iron wires are electromagnetic.

Only wires carrying current are electromagnetic.

Which career combines DNA technology and forensics? pharmaceuticals paternity testing environmental studies genetics

Answers

Answer:

B. Paternity

Explanation:

Edge 2020

The career that combines DNA technology and forensics is paternity testing. The correct option is B.

What is paternity testing?

DNA testing examines an individual's DNA banding patterns to determine the identity or mutations of a specific gene.

Paternity testing is a type of DNA testing that is used to determine paternity and the true nature of a relationship.

The lab compares tissue samples from the mother, the child, and the man to determine what unique characteristics known as genetic markers the child shares with the mother and the man who may be the father.

The chromosomes that determine the gender of the baby (X and Y chromosomes). The mother's egg typically contributes an X chromosome, while the father's sperm contributes either an X or a Y chromosome.

These tests are extremely accurate in determining whether a man is the biological father of a child.

Thus, the correct option is B.

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Men who are kidnapped for human trafficking are usually held under debt bondage or _____.

soldiering
peonage
sex slavery
sex tourism

Answers

Answer:

It is Soldering not peonage

Explanation:

Peonage is what they do for Men not young boys.

Men who are kidnapped for human trafficking are usually held under debt bondage or peonage. Option B. This is further explained below.

What is peonage?

Generally, Men who are kidnapped for human trafficking are frequently held hostage.

In conclusion,  peonage defines Men who are kidnapped for human trafficking.

Read more about Humans

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PLEASE ANSWER THIS QUICK QUESTION!!! ASAP! WORTH A LOT OF POINTS

What do all tide pool creatures have in common?
Or: What are the main features that all tide pool creatures have in common?

Answers

Explanation:

While these small basins at the ocean's edge typically range from mere inches to a few feet deep and a few feet across, they are packed with sturdy sea life such as snails, barnacles, mussels, anemones, urchins, sea stars, crustaceans, seaweed, and small fish.

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