Atom Review

What is contained in the nucleus of an atom?

• Neutrons

• Electrons & Neutrons

• Protons

• Protons & Neutrons

What does the atomic mass of a neutral atom tell you?

• Number of electrons

• Number of neutrons & electrons

• number of protons & neutrons

• number of neutrons

Protons, neutrons and electrons are known as _____.

• Atomic Particles

• Subatomic Particles

• Atomic Pieces

• Subatomic Charges

Protons have a mass of 1 amu each

• True

• False

Neutrons have a mass of 1 amu each?

• True

• False

Electrons have a mass of 1 amu each?

• True

• False

Where is a valence electron located?

• Nucleus of an atom

• Outermost energy shell/level

• Innermost energy shell/level

• They don't exist

What is the ATOMIC NUMBER for Argon?

• 18

• 39.948

• 40

• 22

What is the ATOMIC MASS of Argon (Rounded)?

• 18

• 39.948

• 40

• 22

How many NEUTRONS does an atom of Argon have?

• 18

• 39.948

• 40

• 22