7. Think and discuss: As you move down a group, you will recall that the radius increases.

Why do you think an increase in atomic radius would result in a lower

ionization energy?

8. Think and discuss: As you move across a period, you will recall that the radius decreases.

Why do you think a decrease in atomic radius would result in a greater ionization energy?

9. Predict: Electron affinity (EA) refers to the energy released when an electron is added to

an atom. This release of energy is always expressed as a negative value. The greater the

magnitude of the negative value, the greater the attraction for electrons. (An EA of -100

kJ/mol would indicate a stronger attraction for electrons than an EA of -50 kJ/mol.)

How do you think the size of an atom will affect its ability to attract additional electrons?

Answers

Answer 1

Answer:

See explanation

Explanation:

7. As we move down the group more shells are added. The addition of more shells means that the atom becomes larger and the outermost electron is now at greater distance from the nucleus and screening effect becomes very important. This greater screening effect of the inner electron reduces the magnitude of effective nuclear charge on the outermost electron thereby lowering the ionization energy.

8. As we move across the period, the effective nuclear charge increases without a corresponding increase in the number of shells. As a result of this, the outermost electron becomes more tightly bound to the nucleus as the atom becomes smaller and atomic radius decreases causing a rise in the ionization energy from left to right across a period.

9. Actually, the smaller an atom is the greater its electron affinity. The smaller the atom is, the more the outermost shell is drawn closer to the nucleus and this means that the atom is better able to attract electrons to itself.

Answer 2

It is due to the size of atom which varies its force of attraction.

As you move down a group, the atomic radius increases due to addition of more number of shells in an atom.  This increase in atomic radius would result in a lower  ionization energy because the valance electron is farther from the nucleus and held with weak attractive force so less energy is required to remove it.

While on the other hand, as we move from left to right in a periodic table the atomic radius decreases due to addition of more electrons which shrinks the atom and brought the valance shell closer to the nucleus so it becomes harder to remove an electron because the nucleus held these electrons very tightly.

The size of an atom will affect its ability to attract additional electrons because of its force of attraction. Atoms with small radius has more ability to attract electrons due to higher force of attraction as compared to higher atomic radius atoms.

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Related Questions

Among the groups of elements listed below, which have the same number of electrons in their outermost energy levels?
O NP. As, Sb
None of these
OK, Ca, Rb, Sr
OLI, B, C F
O Na Mg, ALS

Answers

Answer:

N, P, As, Sb

Explanation:

Elements present in the same group having same number of valence electrons. The first option is correct from given options because nitrogen, phosphorus, arsenic and antimony are present in same group thus having same number of electrons in outer most  energy level.

Electronic configuration of N:

N₇: [He] 2s² 2p³

Electronic configuration of P:

P₁₅: [Ne] 3s² 3p³

Electronic configuration As:

As₃₃: [Ar] 3d¹⁰ 4s² 4p³

Electronic configuration Sb:

Sb₅₁: [Kr] 4d¹⁰ 5s² 5p³

Here it is clear from electronic configuration all these elements have five number of valence electrons.

What is 210 kg - 38 kg rounded to the correct number of significant figures

Answers

Answer:

170kg

Explanation:

Convert 5 micrometers to meters

Answers

0.000005 is your answer. Hope this helps!!

Which of the following might be included in a chemical
reaction?



a Molecules
b lons
C Pure elements
d All of the above

Answers

Answer:

D. All of the above

Explanation:

Molecules, ions, and pure elements might be included in a chemical reaction. Therefore, option (d) is correct.

What is a chemical reaction?

A chemical reaction can be described as a reaction that brings the chemical conversion of one chemical substance to another chemical substance. The reactions cause chemical changes that include the rearrangement of electrons in order to create and break bonds between atoms.

The compound or molecules which are primarily utilized in a reaction are called reactants. Chemical reactions give products, which possess characteristics different from the reactants of the reaction.

Chemical reactions take place at a definite rate of reaction at a given concentration, temperature, and pressure. The rate of reaction increases with the rising temperature of the reaction as more activation energy is available for reactant molcules collisions.

Therefore, in a chemical reaction reactants and products can be present as Molecules, ions, and pure elements.

Learn more about Chemical reactions, here:

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#SPJ2

The atomic weight of magnesium is 24.What does that mean? ​

Answers

Answer:

because a 24Mg atom has 12 neutrons in its nucleus

Which term describes the amount of order in a system

Answers

Answer:

entropy

Explanation:

how many electrons are in the second ring of sodium​

Answers

Answer:

there are eight electrons

Select the correct answer

Giving brainliest

Answers

I believe it’s b sorry if it’s wrong I took this kind of class last year

Answer: is C&A

Explanation:the electric motor converts  electricity in to mechanical energy

the  electric generator converts mechanical energy to electricity so it could not be D.

and they don't use batteries as their main source of power so it could not be B.

hence forth it is C&A

HOPE THIS HELPS!!!!!!1

PLEASE MARK BRAINLIEST!!

which statement is a scientific law

Answers

Answer:

It is b

Explanation:

lonic bonds tend to form between two atoms with what characteristics?​

Answers

Answer:Ionic bonds are formed through the exchange of valence electrons between atoms, typically a metal and a nonmetal. The loss or gain of valence electrons allows ions to obey the octet rule and become more stable. Ionic compounds are typically neutral. Therefore, ions combine in ways that neutralize their charges.

Explanation:

Ionic bonds tend to form between two atoms with a high electronegativity difference.

Explanation:

An Ionic bond is defined as a chemical bond in which the complete transfer of electrons occurs from one atom to another.The transfer of electrons occurs from less electronegative atom to highly electronegative atomThe high electronegativity difference between the atomsCompounds with ionic bonds categorized as ionic compounds

So, from this, we can conclude that ionic bonds tend to form between two atoms with a high electronegativity difference.

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confusin helppppppppp????

Answers

anything above 7 is a base and not acidic so

Answer:

d. an acid is the answer

help pls I will give brainliest!

Answers

Answer:

The answer is D, I would type it out but it is to long and I'm kind of lazy, but anyways! Your answer is D

Hope This Helps!

How did astronomers use technology to identify characteristics of the Crab nebula? technology that detects ultraviolet light found hydrogen in the nebula technology that detects radio waves identified a pulsar at the center of the nebula technology that detects microwaves revealed the behavior of electrons in the nebula technology that detects gamma rays measured the distance of the nebula from Earth

Answers

Answer:

technology that detects radio waves identified a pulsar at the center of the nebula

Explanation:

Crab nebula(M1) is a blob-like patch which is supernova remnants as far as Constellation of Taurus is concerned.

It has apparent magnitude of 8.4 and can only be viewed by telescope. The astronomers make use of technology that detects radio waves, which identified a pulsar at the center of the nebula, this pulsar is a magnetized rotating compact star which is known with it's electromagnetic emissions.

Answer:

technology that detects radio waves identified a pulsar at the center of the nebula

Explanation:

What does an atomic number represent in an atom? number of neutrons number of protons number of electrons number of protons and neutrons

Answers

Answer:

The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.

Answer: I'm pretty sure the answer is Number of Protons

Explanation:

I took the k-12 test

Si units are the modern form of _____

Answers

of the metric system

Answer:

Metric system !!hope this helpss

After pollen lands on the stigma of a flower, which of the following happens first?






Help I will give brainlist

Answers

The correct answer is:

Pollination

0.28gram of NH3 on decomposition gave 0.25gram of nitrogen and hydrogen. Find the volume of hydrogen evolved at Ntp. (2gram hydrogen at NTP= 22.4liter)

Answers

The volume of H₂ evolved at NTP=0.336 L

Further explanation

Reaction

Decomposition of NH₃

2NH₃ ⇒ N₂ + 3H₂

conservation mass : mass reactants=mass product

0.28 NH₃= 0.25 N₂ + 0.03 H₂

2 g H₂ = 22.4 L

so for 0.03 g :

[tex]\tt \dfrac{0.03}{2}\times 22.4=0.336[/tex]

A student is able to lift 500N weight by applying 100N. What is the mechanical advantage of a simple machine?

Answers

Explanation:

Load=500N

Effort=100N

Now,

We have,

Mechanical advantage= Load / effort

= 500/100

=5

Therefore, mechanical advantage is 5.

how many hydrogen atoms are there in one mole of ethanol.​

Answers

Answer: 6 molecules

Answer this easy science question for brainiest
First come first served:)

Answers

Answer:

The nucleus is a collection of particles called protons, which are positively charged, and neutrons, which are electrically neutral.

Explanation:

Answer:

the person above me is right

hope you do good on your test

Explanation:

Explain why the Earth has four different seasons​

Answers

Answer:

Earths rotation

Explanation:

Answer:

because if there was not four diferent season we would not have a day or a night because we would not be moving

Explanation:

When fossil fuels, such as gasoline, are burned, they create smoke. Smoke is best described as a heterogeneous mixture of solid particles from the burning fuel dispersed in a gas – usually air. Smoke can be described more specifically as a suspension. What will most likely happen over time to smoke in the atmosphere? The solid particles will spread out and dissolve. The particles will eventually come together in a cloud and produce rain. Over time, the solid particles will settle on whatever is outside. The particles will remain mixed in the air.

Answers

Answer:

Over time, the solid particles will settle on whatever is outside."

Explanation:

Answer:

C

Explanation:

A given mass of gas in a rigid container is heated from 100 °C to 300 °C. Which of the following best describes what will happen to the pressure of the gas? The pressure will

Answers

Answer:

Pressure will increase by a factor of 3.

Explanation:

PV = nRT —> Ideal gas equation.

Taking into account the Gay-Lussac's Law, the pressure will increase by a factor less than three.

Gay-Lussac's law indicates that, as long as the volume of the container containing the gas is constant, as the temperature increases, the gas molecules move faster. Then the number of collisions against the walls increases, that is, the pressure increases. That is, the pressure of the gas is directly proportional to its temperature.

In summary, when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, the pressure of the gas decreases.

Mathematically, Gay-Lussac's law indicates that the ratio of pressure to temperature is constant:

[tex]\frac{P}{T} =k[/tex]

Studying two different states, an initial state 1 and a final state 2, it is satisfied:

[tex]\frac{P1}{T1} =\frac{P2}{T2}[/tex]

In this case, a given mass of gas in a rigid container is heated from 100 ° C to 300 ° C, that is, it is heated from 373 ° K to 573 ° K. This indicates that the temperature is increasing by a factor less than three. Since pressure is directly proportional to temperature, pressure must increase in the same proportion.

Finally, the pressure will increase by a factor less than three.

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What type of bond (Ionic, Covalent or metallic) would be created when titanium bonds with chlorine?

(electronegativity values Ti = 1.54 Cl = 3.16)

Answers

Answer:

Covalent

Explanation:

Titanium on reaction with chlorine forms Titanium tetra chloride(TiCl4).

Titanium holds strong covalent bond with chlorine in TiCL4

The rows in the periodic table are called periods.
What is true about elements in the same period?
A. They have the same atomic mass.
B. Their magnetism increases in strength from left to right.
C. Their atomic numbers increase by 1 from left to right.
D. They have similar chemical properties.

Answers

Answer: C) Their Atomic Numbers increase by 1 from left to right

Answer: C

Explanation:

Isopropyl alcohol is a liquid with a density of 0.785 g/cm^3. How much volume would be taken up be 50.0 grams of isopropyl alcohol

Answers

Answer:

63.94 cm³

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

[tex]volume = \frac{mass}{density} \\ [/tex]

From the question we have

[tex]volume = \frac{50}{0.785} \\ = 63.694267...[/tex]

We have the final answer as

63.94 cm³

Hope this helps you

Positive ions have ______ (More or Less) protons than electrons.

Answers

Answer:

More i think im remembering correctly

Explanation:

What is the mass of an atom with 44 protons, 42 electrons, and 57 neutrons?

Answers

Answer:

The atomic mass is 101.

Explanation:

Protons and neutrons are the only particles that contribute to mass. Electrons do have a mass, but it's so miniscule and insignificant that it doesn't contribute to the mass of an atom. In every instance of calculating atomic mass, add the number of protons to the number of neutrons.

Therefore,

44 + 57 = 101

number of protons + number of neutrons = atomic mass

Also, there can never be a negative amount of protons or neutrons, so if you get a negative number, there's something wrong.

Bonus Information:

Don't confuse mass with charge! As it says in its name, neutrons are neutral or have no charge. Protons (+) and electrons (-) are the only particles that have a charge, so calculating that would be different.

If you were calculating the atomic charge with the same numbers, your answer would be:

44 - 42 = 2

Charge = +2

What To Remember:

M = p + n

C = p - e

C = atomic charge, M = atomic mass, p =protons, n = neutrons, e = electrons

I hope this helps!

Clinical thermomerter​

Answers

Answer:

Here is the definition: A medical thermometer (also called clinical thermometer) is used for measuring human or animal body temperature.

a small medical thermometer with a short but finely calibrated range, for taking a person's temperature.

Which temperature is the warmest?
290K
75 F
30 C

Answers

Answer:

What the heck is "K" but I beleive 75 is the answer, but maybe wait for sumone else to answer.

Explanation:

Answer:

30 C

Explanation:

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