5.1

Question 1

Charge/ position/ mass of protons?

Answer 1

+1 charge, in nucleus, heavy mass of 1

Question 2

Charge/ position/ mass of neutrons?

Answer 2

0 charge, in nucleus, mass of 1

Question 3

Charge/ position/ mass of electrons?

Answer 3

-1 charge, outside of nucleus, mass of 0

Question 4

What is an isotope?

Answer 4

Same element with a different amount of neutrons

Question 5

What is the atomic number of an element determined by?

Answer 5

The amount of protons in an element

Question 6

What is the role of protons?

Answer 6

Determine identity of an atom

Question 7

What is the role of electrons?

Answer 7

Reactivity of an atom

Question 8

What is the role of neutrons?

Answer 8

Hold protons in place in the nucleus

Question 9

What charges attract? What charges repel?

Answer 9

+- attract, ++ repel, – repel

Question 10

More charge means more or less coulombic attraction?

Answer 10

More

Question 11

How does distance affect coulombic attraction?

Answer 11

It causes attraction to go down

Question 12

If an atom has 16 protons, 16 neutrons, and 18 electrons what is the element?

Answer 12

Sulfur, 32 mass, -2 charge

Question 13

An atom of Calcium has an atomic mass of 41 and a net charge of +2

Answer 13

Protons: 20
Neutrons: 21
Electrons: 18