Unit 1.3 Isoptopes

Flashcards about elements, isotopes and ions

Magnesium (Mg)

Alkaline earth metal; Main metal

Manganese (Mn)

Transition metal

Silicon (Si)

Metalloid

Neon (Ne)

Noble gas; Non-metal

Bromine (Br)

Halide; -1 charge

Sodium (Na)

Alkali metal; +1 charge

Arsenic (As)

Variable charge

Beryllium (Be)

Alkaline earth metal; +2 charge

Atomic Mass Unit (amu)

A unit used to measure the mass of subatomic particles, based on carbon-12.

Isotopes

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

Atomic Number

Number of protons in the nucleus of an atom

Average Atomic Mass

Population weighted average of naturally occurring isotopes

Ion

An atom or molecule with an electrical charge due to the loss or gain of electrons.

Anion

Negatively charged particle (more electrons than protons).

Cation

Positively charged particle (more protons than electrons).