Atom Structure

What is the Atomic Number

• 15.9994
• 8
• 16
• 32

What is the Atomic Mass?

• 15.9994
• 16
• 8
• 32

How many protons (+p) does this atom have?

• 2
• 7
• 8
• 16

How many electrons (-e) does this atom have?

• 2
• 7
• 8
• 16

How many neutrons (n⊗) does this atom have?

• 2
• 7
• 8
• 16

Why are there the same amount of protons (+p) and electrons (-e) ?

• There aren't. These are different
• They need to cancel out 
• Just because

How do we determine the amount of neutrons?

• Guess.
• Add the Atomic Number to the Atomic Mass
• Subtract the Atomic Number from the Atomic Mass