Mod 7 Lesson 3

Question 1

What is an anion?

Answer 1

The gain of one or more electrons resulting in a negatively charged atom.

Question 2

How does atomic size change across a period and down a column on the periodic table?

Answer 2

Atomic size increases from right to left across a period and increases from top to bottom in a column.

Question 3

What is the bonding atomic radius?

Answer 3

Half the distance between two bonding atoms’ nuclei; ½d.

Question 4

What is a cation?

Answer 4

The loss of one or more electrons resulting in a positively charged atom.

Question 5

What is effective nuclear charge?

Answer 5

The attractive force between an electron in a many-electron atom and its nucleus after taking into account electron screening.

Question 6

What is an ion?

Answer 6

A neutral atom that has gained or lost electrons creating an electric charge.

Question 7

How does ionic radius size change across a period and down a column on the periodic table?

Answer 7

Ionic radius size increases from right to left across a period and increases from top to bottom in a column; anions are larger than their neutral counterparts, and cations are smaller than their neutral counterparts.

Question 8

What is the nonbonding radius?

Answer 8

The shortest length separating the nuclei of the two atoms during a collision.

Question 9

What is a shell in atomic structure?

Answer 9

Also known as energy level; a location outside of the nucleus with very specific energies where electrons are located.