Atomic Structure

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Chemical Nomenclature

Szerző: NA - 10SP - Castlebrooke SS (2692)

Intro to Chem .

Szerző: Melanie Thomas

Elements, Compounds, Mixtures

Szerző: Siti Khadijah

Elements

Szerző: Woon Kiat

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