Elements in Period 3 (2)

Chemistry

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Elements in Period 3 (5)

Phosphorus (P)

Elements in Period 3 (6)

Sulphur (S)

Elements in Period 3 (7)

Chlorine (Cl)

Elements in Period 3 (8)

Argon (Ar)

Changes in Physical Properties of Elements Across Period 3 (1)

Going across Period 3 from left to right, the atomic size will decrease because the atomic radius decreases

Changes in Physical Properties of Elements Across Period 3 (2)

Increase in the number of protons across Period 3 will increase the charge in the atom̕s nucleus

Changes in Physical Properties of Elements Across Period 3 (3)

The electronegativity of elements will increase because the nuclear attraction force towards the electrons increases

Changes in Physical Properties of Elements Across Period 3 (4)

The physical state of Period 3 elements will change from solid to gas from left to right across the period

Element in Period 3 which is a metal element (1)

Aluminium (Al)

Element in Period 3 which is a metal element (2)

Sodium (Na)

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