The atom.

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Presentation transcript:

The atom

Electron Clouds Major energy level Maximum number of electrons K 2 electrons L 8 electrons M 18 electrons N 32 electrons O 32 electrons P 18 electrons Q 2 electrons

Atomic Number Atomic Number Number of Protons in the Nucleus Atomic Mass Average weight of an element’s atom

Periodic Table

Hydrogen

Carbon

Oxygen

Water Molecule

Carbon Dioxide Molecule

Sodium atom

Chloride atom

Sodium Chloride molecule

Sodium Chloride in Water

Isotopes Atoms of the same element that have different numbers of neutrons in the nucleus

Isotopes of Carbon Carbon 12 6 protons, 6 neutrons, 6 electrons Carbon 14 6 protons, 8 neutrons, 6 electrons Radioactive

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