Subatomic Particles

How many protons are in Zirconium (Zr) ?

• 40
• 91
• 30
• 65

What is the atomic mass of Copper?

• 63
• 29
• 34
• 92

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 does the atomic mass tell you?

• Basically,the number of electrons and protons
• The number of neutrons
• Basically, the number of protons and neutrons
• The number of protons.

An element's identity is determined by the number of

• electrons.
• protons.
• neutrons.
• valence.

Elements can have the same number of protons?

• True
• False

Typically in an atom, which two subatomic particles are equal in number?

• protons and neutrons

• all subatomic particles are equal in number

• neutrons and electrons

• protons and electrons

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

Which subatomic particle has a negative charge?

• proton

• neutron

• electron

• cybertron