
Atomic Radius and Ionic Radius Concepts

Interactive Video
•
Chemistry, Science, Physics
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the atomic radius formally defined as?
Half the distance between two bonded nuclei
The distance from the nucleus to the outermost electron
The diameter of an atom
The distance from the nucleus to the edge of the electron cloud
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does atomic radius change across a period from left to right?
It increases
It remains constant
It decreases
It fluctuates
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of shielding in an atom?
It increases the size of the nucleus
It increases the nuclear charge experienced by valence electrons
It reduces the nuclear charge experienced by valence electrons
It has no effect on nuclear charge
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is effective nuclear charge calculated approximately?
Atomic number minus the number of inner electrons
Number of inner electrons plus atomic number
Atomic number plus the number of inner electrons
Number of valence electrons minus atomic number
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does atomic radius increase down a group?
Due to increasing nuclear charge
Because of decreasing energy levels
Because valence electrons enter new energy levels further from the nucleus
Due to decreasing shielding effect
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the atomic radius as effective nuclear charge increases across a period?
It increases
It decreases
It remains the same
It fluctuates
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the size of a cation compare to its parent atom?
It is smaller
It is larger
It is the same size
It varies depending on the element
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