1.2 Atomic theory

Question 1

What are the three particles in an atom?

Answer 1

Election
Proton
Neutron

Question 2

What’s the mass and charge of a proton?

Answer 2

Charge: +1
Mass: 1

Question 3

What’s the mass and charge of a neutron?

Answer 3

Charge: 0
Mass: 1

Question 4

What’s the mass and charge of an electron?

Answer 4

Charge: -1
Mass: 0

Question 5

What’s the maximum amount of electrons that can be in shell one?

Answer 5

2 electrons (Think He)

Question 6

What’s the maximum amount of electrons that can be in shell 2?

Answer 6

8 electrons

Question 7

What does the atomic number of an element tell you?

Answer 7

The number of protons an atom contains

Question 8

What is the mass number equal to?

Answer 8

The number of protons plus the number of neutrons

Question 9

What are isotopes?

Answer 9

Isotopes are atoms with the same atomic number but different mass number

Question 10

What is an ion?

Answer 10

An particle which has gained or loses an electron

Question 11

What type of ions do metals form?

Answer 11

Metals loose electrons to form positive ions

Question 12

What type of ions do Non-metals form?

Answer 12

Non- metals gain electrons to form negative ions

Question 13

What is a Nobel gas?

Answer 13

Group 8/0 elements have a full outer shell (Stable) so don’t form ions