Chapter 2

Question 1

Positive Charge comes into contact w/ negative charges

Answer 1

Positive and negative charges attract

Question 2

Positive charge comes into contact w/ positive charge
Negative charge comes into contact w/ negative charge

Answer 2

Positive repels positive
negative repels negative

Question 3

The magnitude of a positive and negative charge combined is equal to

Answer 3

Zero [+1 charge + (-1 charge)]

Question 4

Neutrons

Answer 4

Neutral particles within the nucleus

Question 5

Nuclear theory of an Atom

Answer 5

1.The atom’s mass and all of its positive charge are contained in the nucleus.
2. Most of the volume of the atom is empty space, negatively charged electrons are dispersed.
3. There are as many electrons outside the nucleus as there are protons within the nucleus

Question 6

Amu

Answer 6

Atomic Mass Unit

Question 7

Atomic Number

Answer 7

amount of protons in a nucleus

Question 8

Mass # of particle

Answer 8

sum of protons and neutrons

Question 9

Isotopes

Answer 9

Atoms with same number of protons but different numbers of neutrons

Question 10

Ions

Answer 10

Charged particles

Question 11

Positively charged ions

Answer 11

Cations

Question 12

Negatively charged ions

Answer 12

Anions

Question 13

Avogadro’s Number

Answer 13

6.022x10^23 particles (total amount in one mol)

Question 14

The mass of one mole of atoms of an element

Answer 14

molar mass (g/mol)