Review

All matter is made of _________.

• energy 
• atoms 
• electrons 
• compounds 

The amount of matter/atoms in an object is...

• volume

• mass

• density

• weight

Which (3) of these are subatomic particles that form an atom? (choose 3)

• Protons

• Klingons

• Electrons

• Microns

• Neutrons

A proton has a ___________ charge.

• positive

• negative

• neutral

• massive.

An electron has a _________ charge

• positive

• neutral

• negative

• massive

The particles with no charge in an atom are the _______.

• electrons
• neutrons
• protons
• protons and neutrons

What does the nucleus of an atom contain?

• Electrons and neutrons
• Protons and neutrons
• Neutrinos and positrons
• DNA and RN

__________ are negatively charged particles that are in the orbitals around the nucleus.

• protons

• nucleus

• neutrons

• electrons

An element is identified by

• its number of protons

• the atomic mass

• the type of charge

• its number of isotopes

What is this table

• Elemental Table of Periods

• Atomic Table of Atoms

• Periodic Table of Elements