BioChemistry Review

Front

What is a neutron?

Back

A neutron is a subatomic particle found in the nucleus of an atom that has no charge.

Front

What are the four elements that all life is made up of?

Back

Hydrogen, Oxygen, Nitrogen, and Carbon.

Front

Which group of elements have full outer shells?

Back

The noble gases.

Front

Why does an ion have a charge?

Back

An ion has a charge because there are different numbers of protons and electrons.

Front

What forms covalent bonds in chemical compounds?

Back

Covalent bonds form when pairs of electrons are shared between two atoms.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.