Biology Chapter 6.1 : Chemistry in Biology Vocab Flashcard

Front

What are negatively charged subatomic particles called?

Back

Electrons are negatively charged subatomic particles.

Front

What is a pure substance that cannot be broken down into other substances by physical or chemical means?

Back

An element is a pure substance that cannot be broken down.

Front

What type of chemical bond forms when electrons are shared between atoms?

Back

A covalent bond forms when electrons are shared.

Front

What are atoms of the same element that have different numbers of neutrons called?

Back

Isotopes are atoms of the same element with different numbers of neutrons.

Front

What are the attractive forces between molecules known as?

Back

Van der Waals forces are the attractive forces between molecules.

Front

What is the smallest unit of an element that retains the properties of that element?

Back

An atom is the smallest unit of an element.

Front

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

Back

A compound is a substance made of two or more different elements that are chemically bonded.

Front

What type of bond involves the transfer of electrons from one atom to another?

Back

An ionic bond involves the transfer of electrons.

Front

What is the term for the number of protons in the nucleus of an atom?

Back

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

Front

What is the term for the average mass of an element's isotopes, weighted by their natural abundance?

Back

The atomic mass is the average mass of an element's isotopes.