3NA Atomic Structure

What are atoms made up of?

• Protons

• Neutrons

• Ions

• Electrons

• Compounds

Drag and drop the correct relative charges of protons, neutrons and electrons

a

b

c

0

-1

+1

Which sub-atomic particles are found in the nucleus of the atom?

• Proton

• Electron

• Neutron

Atoms are electrically __________

How many electrons are there in an atom of sodium?

• 12

• 23

• 11

How many neutrons are there in an atom of sodium?

• 12

• 23

• 11

The first electron shell can hold a maximum of ​ (a)   electrons.

The second electron shell can hold a maximum of ​ (b)   electrons.

The third electron shell can hold a maximum of ​ (c)   electrons.

• 2
• 8
• 1
• 18

What is the electronic configuration of carbon?

• 6

• 2.4

• 2.8.2

What is the electronic configuration of Magnesium?

• 12

• 2.8.2

• 2.8.8.6