Shielding and Effective Nuclear Charge

Quiz
•
Science
•
12th Grade
•
Hard
Standards-aligned
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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