write down the charactesists of tha element s have atomic namber 17?
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1
Answer:Chlorine has atomic number 17.
Electronic Configuration- 1s
2
2s
2
2p
6
3s
2
3p
5
.
Period Number-3
Group number- VII (A) or 17
Element Family- Halogens
No. of valence electrons- 7
Valency- 1
Metal/ Non-metal- Non-metal.
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4
Answer:
Chlorine has atomic number 17.
Electronic Configuration- 1s^2 2s^2 2p^6 3s^2 3p^5
Period Number-3
Group number- VII (A) or 17
Element Family- Halogens
No. of valence electrons- 7
Valency- 1
Metal/ Non-metal- Non-metal.
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