Ch. 2 Chemical Basis of Life Part 1

Front

A subatomic particle that has a negative charge and encircles the nucleus of an atom is called an _________.

Back

electron

Front

The dense core of an atom, composed of protons and usually neutrons, is called the _________.

Back

nucleus

Front

What is the definition of pH?

Back

hydrogen ion concentration

Front

A substance that increases the hydrogen ion concentration of a solution is called an _________.

Back

acid

Front

A substance that decreases the hydrogen ion concentration in a solution is called a _________.

Back

base

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 term for the outermost shell of an atom where electrons reside?

Back

valence shell

Front

What is the term for a substance made of two or more different elements that are chemically bonded?

Back

compound