Chemistry Semester 1 Final

Front

What are the three subatomic particles of an atom?

Back

Protons, Neutrons, 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 atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

Define ionization energy.

Back

The energy required to remove an electron from an atom.

Front

What is the relationship between valence electrons and ionization energy?

Back

As valence electrons increase, ionization energy also increases.

Front

What does the law of conservation of mass state?

Back

Matter cannot be created or destroyed, only transformed.

Front

Define chemical potential energy.

Back

Chemical potential energy is the energy stored in the chemical bonds of a substance.