Structure of Atom

Which particle has a positive charge

• neutron

• electron

• proton

• nucleon

Which particles make up the nucleus of an atom

• proton and neutron

• electron and proton

• electron and neutron

• electron, proton and neutron

What is atomic number

• the number of neutrons

• the number of protons

• the number of proton and neutrons

• the number of proton and electrons

What is the mass number defined as?

• the number of protons

• the number of neutrons

• the number of electron and protons

• the number of neutrons and protons

What is the mass number of this atom?

• 1

• 3

• 4

• 7

What is the nucleon number of sodium?

• 11

• 23

• 12

What is the neutron number of the sodium atom?

• 23

• 12

• 11

• 22

An element has the mass number 12 and atomic number 6. What is the number of neutron

• 6

• 4

• 10

• 8

The atom has 24 atomic mass and 14 neutrons. How many electron does it have.

• 24

• 10

• 14

• 12

What is the mass number of chlorine?

• 12

• 24

• 35

• 17