1st Sem Physical Science Review

Front

Why do all bonds form?

Back

To fill the outermost energy level.

Front

An Atom contains________ in various energy levels or orbitals.

Back

Electrons.

Front

All atoms of the same element have the same number of electrons, protons, and neutrons. True or False?

Back

False.

Front

What is the Atomic Number?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

SIDE TO SIDE rows on the periodic table are called?

Back

Periods.

Front

What are the three subatomic particles of an atom?

Back

Protons, Neutrons, and Electrons.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the significance of the outermost energy level of an atom?

Back

It determines the atom's chemical properties and reactivity.