11. State the use of any five named non-metals
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Ответ:
Oxygen is used for breathing.
Chlorine is used for purifying water.
Phosphorous is used in crackers.
Non - metals like nitrogen is used in fertilizers.
Graphite is used as a good conductor of electricity.
Hope this helps
Ответ:
2p: answer is 4
3d: answer is 2
2s: answer is 1
4f: answer is 5
1s: answer is 3