Chapter 2

Question 1

What two subatomic particles make up a nucleus

Answer 1

Protons and neutrons

Question 2

What is the relative mass of a proton

Answer 2

1

Question 3

What is the relative mass of a neutron

Answer 3

1

Question 4

What is the relative mass of an electron

Answer 4

1/1836

Question 5

What is the electron to proton ratio in an atom

Answer 5

Each atom has the same amount of protons as electrons

Question 6

What are isotopes

Answer 6

Isotopes are atoms of the same element with different numbers of neutrons and different masses

Question 7

Mass number

Answer 7

The number of neutrons present in the atom

Question 8

Atomic number

Answer 8

The number of protons present in the nucleus which is equal to the number of electrons

Question 9

What is a positive ion

Answer 9

A cation is an atom with fewer electrons than protons

Question 10

What is a negative ion

Answer 10

Anions are atoms with more electrons than protons

Question 11

Relative isotopic mass

Answer 11

The mass of an isotope relative to 1/12th of the mass of an atom of carbon-12

Question 12

Relative atomic mass

Answer 12

The weighted mean mass of an atom of an element relative to 1/12th of the mass of an atom of carbon-12

Question 13

Mass to charge ratio

Answer 13

M/z=relative mass of ion/relative charge of ion

Question 14

Relative atomic mass formula

Answer 14

RAM=(abundance x mass number)/100

Question 15

What is the charge of group 1 ions

Answer 15

1+

Question 16

What is the charge of group 2 ions

Answer 16

2+

Question 17

Group 5 non-metal charge

Answer 17

3-

Question 18

Group 6 non-metals charge

Answer 18

2-

Question 19

Group 7 non-metal charge

Answer 19

1-

Question 20

Why do group 8 have no ions

Answer 20

They all have full outer shells so won’t want to lose any electrons or gain any

Question 21

What ionic charges to transition metals have

Answer 21

The charge of the transition metals depends on the other atom they are reacting with