1
Q
Why are metals good conductor of heat and electricity
A
Delocalised electrons that moves through structure
2
Q
Why do giant covalent structures dimond have high melting boiling point
A
Strong covalent bond in structure so large amount of energy is needed to be broken
3
Q
Which 2 substances contain covalent bond
A
Simple molecular structure and giant covalent
4
Q
Why does chlorine have high melting point
A
Strong electrostatic forces of attraction between oppositely charged ions
Large amount of energy is needed
5
Q
Why does sodium chloride not conduct electristy
A
Ions are not free to move
Fixed position
Chemistry
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