Atomic Mass

What does Atomic number mean? (answer all that are correct)

• number of protons in the nucleus

• number of protons in the nucleus

• number of protons in the nucleus

• number of protons in the nucleus

These are examples of an Element Symbol: (Select all that apply)

• 
• 
• 
• 

Which one shows the element name?

• 8

• O

• Oxygen

• 15.999

Which shows the atomic mass?

• 8

• O

• Oxygen

• 15.999

How do we find atomic mass?

• number of protons + neutrons

• number of protons - neutrons

• number of protons

• number of neutrons

How do we find the number of neutrons in an element?

• Atomic mass - atomic number

• number of protons + neutrons

• Element symbol

• Element symbol