Elements in Period 3 (3)

Chemistry

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Element in Period 3 which is a metal element (3)

Magnesium (Mg)

Element in Period 3 which is a is a semi-metal element or metalloid

Silicon (Si)

Element in Period 3 which is a non-metal elements (1)

Phosphorus (P)

Element in Period 3 which is a non-metal elements (2)

Sulphur (S)

Element in Period 3 which is a non-metal elements (3)

Chlorine (Cl)

Element in Period 3 which is a non-metal elements (4)

Argon (Ar)

Changes in Chemical Properties of Oxides of Elements Across Period 3 (1)

Going across Period 3, the properties of oxide change from basic oxide to amphoteric oxide and then to acidic oxide

Changes in Chemical Properties of Oxides of Elements Across Period 3 (2)

Group 1 and 2 elements form metal oxides that are basic

Changes in Chemical Properties of Oxides of Elements Across Period 3 (3)

When dissolved in water, both basic oxides (Group 1 and 2 elements) will produce alkaline solutions

Changes in Chemical Properties of Oxides of Elements Across Period 3 (4)

Basic oxides also react with acid to form salt and water

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