AP Bio Unit 1

Front

atom

Back

Basic unit of matter

Front

proton

Back

positively charged particle

Front

neutron

Back

no charge

Front

Electron

Back

negatively charged particle

Front

atomic nucleus

Back

An atom's dense central core, containing protons and neutrons.

Front

chemical bond

Back

the attractive force that holds atoms or ions together

Front

ionic bond

Back

Formed when one or more electrons are transferred from one atom to another

Front

covalent bond

Back

A chemical bond that involves sharing a pair of electrons between atoms in a molecule

Front

Hydrogen bond

Back

weak attraction between a hydrogen atom and another atom

Front

Ions

Back

positively and negatively charged atoms due to the loss or gain of electrons