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