Unit 3 Review

The atomic number tells you what?

• number of electrons
• number of protons
• number of neutrons
• both electrons and protons in an atom.

What is the element symbol for boron? 

• B
• Bo
• Bn
• W

Each element is unique based on its number of protons, also known as the...

• atomic mass
• valence number
• atomic symbol
• atomic number

The atomic number of this pictured element is

• 28
• 58.6934
• Ni
• Nickel

what does the 6 represent?

• Atomic mass
• atomic number
• chemical symbol
• element name

A proton is....

• A negatively charged subatomic particle
• A positively charged subatomic particle
• A neutrally charged subatomic particle
• The only subatomic particle located in the nucleus

A neutron has a charge of

• +2
• No charge
• -1
• +1

What is the atomic mass of Neon?

• 10
• 30
• 10.18
• 20.18

Which is a neutron?

• A
• B
• C

What is the formula to solve for the neutron?

• Mass + Atomic Number= Neutrons
• Mass x Atomic Number = Neutrons
• Mass - Atomic Number = Neutrons
• Mass + Number of Protons = Neutron