Midterm Review 24-25

Front

What is the formula for the compound formed by potassium (K) and sulfide (S)?

Back

K₂S

Front

Which subatomic particle has an atomic mass unit (amu) of 1 and a positive charge?

Back

Proton

Front

Convert 12,000,000 to scientific notation.

Back

1.2 x 10^7

Front

List the atomic theory in sequential order: Discovery of electrons, Discovery of nucleus, Multiple energy levels of electrons, Electrons behave as waves.

Back

Discovery of electrons; Discovery of nucleus; Multiple energy levels of electrons; Electrons behave as waves

Front

How many meters are in 5000 millimeters?

Back

5 meters

Front

What is the charge of a proton?

Back

Positive (+)

Front

What is the charge of an electron?

Back

Negative (-)

Front

What is the charge of a neutron?

Back

Neutral (0)

Front

What is the scientific notation for 0.00045?

Back

4.5 x 10^-4

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.