What is the charge on a neutron?

• +1

• -1

• 0

What is the charge on a proton?

• +1

• -1

• 0

What is the charge on an electron?

• +1

• -1

• 0

What is the relative mass of a neutron?

• 1

• 0

• 1/1840

What is the relative mass of a proton?

• 1

• 0

• 1/1840

What is the relative mass of an electron?

• 1

• 0

• 1/1840

Organize the sub-atomic particles into the location of the atom in which they are found.

Groups:

(a) Within the nucleus

,

(b) orbiting in shells

• neutron

• proton

• electron

Atoms are electrically​ (a)  

• neutral
• positive
• negative
• charged

The number of​ (a)   and electrons in an atom are always equal.

• protons
• neutrons

Which sub-atomic particles contribute to the mass of an atom? Select all that apply.

• proton

• neutron

• electron