Kategoriak: All - nucleus - protons - ions - electrons

arabera Peter Clark 15 years ago

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Atomic Structure

Atoms are the fundamental units of matter, consisting of a nucleus surrounded by electrons. The nucleus contains protons and neutrons, where protons have a positive charge and neutrons are neutral.

Atomic Structure

Atomic Structure

Mass number

The number of protons + the number of neutrons

Atomic number

The number of protons or electrons in an atom

Isotopes

Atoms of the same element with different atomic mass
Due to differing numbers of neutrons

Ions

Are charged particles
Negative: - Anions

Gained electrons

Positive: - Cations

Lost electrons

Are formed when atoms gain or lose electrons

Atoms

Nucleus
Neutron

Mass: - 1 A.M.U.

Charge: - 0

Proton

Mass: - 1 A.M.U

Charge: - +1

Electron
Charge: - -1
Mass: - 1/1840 A.M.U