Atomic Numbers and Electron Configurations

Question 1

Use the periodic table to determine which elements are likely to have a larger atomic radius than silicon (Si). Check all that apply.

Revolt · Accepted Answer

aluminum (Al); tin (Sn)

Question 2

Describe the trends in atomic radii by checking the correct box. Atomic radii from the left to right across a period tend to:

Revolt · Accepted Answer

decrease.

Question 3

Atomic radii from the top to the bottom of a group tend to:

Revolt · Accepted Answer

increase.

Question 4

A chlorine ion is than a phosphorus ion.

Revolt · Accepted Answer

smaller

Question 5

A potassium ion is than a sodium ion.

Revolt · Accepted Answer

larger

Question 6

Electronegativity down a group:

Revolt · Accepted Answer

decreases.

Atomic Numbers and Electron Configurations Answers