Group 1 (Alkali metals)

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4 Terms

1
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Properties of alkali metals

Soft

Low density

Very reactive

2
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Why do alkali metals lose their electrons so easily

There is only one electron in the outer shell meaning less energy is needed to break away the electron

3
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Why does reactivity increase as we go down group 1

The size of the atom increases which means electrostatic force of attraction decreases between the nucleus and electron meaning less energy is needed to overcome the force

4
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Alkali metal + water →

metal hydroxide + hydrogen