How many electrons does Si contain? (click to see image)

• 14
• 28
• 2
• 4

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

The atomic number tells you...

• the number of protons

• the number of neutrons

• the number of electrons

What charge do electrons have?

• Positive

• Neutral

• Negative

How many electrons can the third shell have?

• Two

• Eight

• Five

• Three

Which two particles are contained in the nucleus of an atom?

• Protons and Neutrons

• Protons and Electrons

• Electrons and Neutrons

What is the electronic configuration of Lithium?

• 2.8.8

• 2.2.2

• 2.8.5

• 2.1

How many electrons per shell does calcium have?

• 2,8,8,2

• 2,8,10

• 2,8,2,8

• 2,1,8,2

Which element has 2,5 electrons per shell?

• Oxygen

• Nitrogen

• Phosphorus

• Carbon

The Nucleus is in the ________ of the atom.

• Centre

• Outside

• Vacuum

• Neutron