2.2 Study Guide

Question 1

Which charges attract?

Answer 1

Different charges attract.

Question 2

Which charges repel?

Answer 2

Similar charges repel.

Question 3

Please give an example of which charges repel and which attract.

Answer 3

• Electrons with electrons repel.
• Protons and electrons attract.

Question 4

What is the relationship between coulombic attraction and amount of charge?

Answer 4

Direct relationship. As either charge increases, the force will also increase by the same magnitude.

Question 5

What is the relationship between coulombic attraction and distance?

Answer 5

Inverse relationship. As the distance between them increases, the force of attraction decreases.

Question 6

Which atom has a higher electronegativity? Please explain. Hydrogen, argon, helium, or sodium.

Answer 6

Helium. This is because electronegativity increases as you move from left to right on the periodic table and decreases as you move down.

Question 7

Which atom has a stronger or weaker attraction for valence electrons? Please explain. Fluorine or francium?

Answer 7

• Stronger = Fluorine because it has a stronger pull and is closer to the nucleus. It attracts the most.
• Weaker = Francium because it’s further away from the nucleus and attracts the lowest amount.

Question 8

Electrons to electrons do what?

Answer 8

Repel.

Question 9

Inverse relationship is the relationship between what?

Answer 9

The relationship between distance and coulombic attraction.

Question 10

Protons to electrons do what?

Answer 10

Attract.

Question 11

Direct relationship is the relationship between what?

Answer 11

The relationship between coulombic attraction and the amount of charge.

Question 12

The attraction of the nucleus to valence electrons depends on?

Answer 12

• The amount of protons (more protons + more charge = more coulombic attraction.)
• Distance from the nucleus (more distance = less coulombic attraction + electrons in between shield/repel).