Basic Chemistry Concepts

Front

The smallest unit of matter that retains the properties of an element. Consists of protons, neutrons, and electrons.

Back

Atom

Front

The dense center of an atom, containing protons (positively charged) and neutrons (neutral).

Back

Nucleus

Front

A negatively charged subatomic particle found in the electron cloud around the nucleus of an atom.

Back

Electron

Front

A pure substance consisting of only one type of atom, defined by its number of protons.

Back

Element

Front

Variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Back

Isotope

Front

A substance formed when two or more different elements combine in fixed proportions through chemical bonds.

Back

Compound

Front

A type of chemical bond formed through the transfer of one or more electrons from one atom to another, resulting in positive and negative ions.

Back

Ionic Bond

Front

An atom or molecule with a net electric charge due to the loss or gain of electrons.

Back

Ion

Front

A chemical bond where two atoms share one or more pairs of electrons.

Back

Covalent Bond

Front

A group of atoms bonded together, representing the smallest unit of a chemical compound that can take part in a chemical reaction.

Back

Molecule