Shielding and Effective Nuclear Charge

Shielding and Effective Nuclear Charge

12th Grade

15 Qs

quiz-placeholder

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Shielding and Effective Nuclear Charge

Shielding and Effective Nuclear Charge

Assessment

Quiz

Science

12th Grade

Hard

NGSS
HS-PS1-1, HS-PS1-8, HS-PS1-2

Standards-aligned

Created by

Lisa Thompson

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Shielding electrons causes the force of attraction to the nucleus to 

increase

decrease

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The effective nuclear charge is _____ the actual nuclear charge

equal to

less than

greater than

Tags

NGSS.HS-PS1-8

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Choose the answer choice that best describes why cations are smaller than the parent atoms.

cations lose electron(s) resulting in more protons than electrons. Zeff increases

cations gain electron(s) resulting in more electrons than protons. Zeff decreases

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

As you move down a family on the periodic table, the increase in atomic radius can be explained by the ___.

increase in number of shielding electrons

increase in effective nuclear charge

decrease in number of shielding electrons

decrease in effective nuclear charge

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the effective nuclear charge of a valence electron in the Al+ cation?

2

3

12

13

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the effect of shielding on the effective nuclear charge experienced by outer electrons?

Increases the effective nuclear charge

Decreases the effective nuclear charge

Has no effect on the effective nuclear charge

Doubles the effective nuclear charge

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following best explains why the effective nuclear charge is less than the actual nuclear charge?

Presence of inner-shell electrons

Absence of inner-shell electrons

Increase in atomic radius

Decrease in atomic radius

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