Chemistry: Atoms, Molecules, and Ions

Front

What are the three subatomic particles of an atom?

Back

Protons, Neutrons, Electrons.

Front

What is the charge and relative mass of a proton?

Back

Charge: +1 (positive), Relative mass: 1.007 a.m.u.

Front

What is the charge and relative mass of a neutron?

Back

Charge: 0 (neutral), Relative mass: 1.009 a.m.u.

Front

What is the charge and relative mass of an electron?

Back

Charge: -1 (negative), Relative mass: 0.0005486 a.m.u.

Front

Define proton number (Z).

Back

The number of protons in the nucleus of an atom.

Front

Define nucleon number (A).

Back

The total number of protons and neutrons in the nucleus.

Front

What are isotopes?

Back

Atoms of the same element with the same number of protons but different numbers of neutrons.

Front

What is isotopic abundance?

Back

The relative proportion of each isotope of an element in a sample.

Front

What is a cation?

Back

A positively charged ion formed when an atom loses electrons.

Front

What is an anion?

Back

A negatively charged ion formed when an atom gains electrons.