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Atoms, elements & compounds 1

Show how a magnesium atom becomes a magnesium ion.

Mg loses 2 electrons

Mg  -->  Mg^2+  +  2e-

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Atoms, elements & compounds 2

Show how a chlorine atom becomes a chlorine ion.

Cl gains 1 electron

Cl  +  e-  -->  Cl-

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Atoms, elements & compounds 3

Explain what we mean by ionic bonding.

Electrostatic attraction between positive and negative ions.

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Atoms, elements & compounds 4

Explain what we mean by the term covalent bonding.

Non metal atoms sharing pairs of electrons.

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Atoms, elements & compounds 5

Describe the bonding in pure metals.

Positive ions in a sea of delocalised electrons.

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Atoms, elements & compounds 6

Identify 3 properties of metals.

  • Malleable
  • Good conductors
  • Strong
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