neon and chlorine have atomic number 10 and 17 respectively.thier valancies will be ________&of sulphur is_____
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Answered by
4
valency of -
chlorine = 1
neon=0
sulphur = 2
chlorine = 1
neon=0
sulphur = 2
Ankit1234:
why valency are negative?
because the atoms gain one electron to attain stable electronic configuration. the gain of electrons makes the overall charge of the atom negative.
but valency only written in positive
No it is not. all non metals hve negative valency
but it is written only in positive.....u can see in books or internet also
it was my mistake srry
no sorry
Answered by
1
Neon configuration 1s^2 ,2s^2, 2p^6
hence in their valence shell 8 electron found , so, Neon valency is8-8=0
Cl configuration 1s^2,2s^2,2p^6,3s^2,3p^5
hence chlorine valence electron is 7
so, valency of chlorine is 7-8=-1
sulphur configuration 1s^2,2s^2,2p^6,3s^2,3p^4
hence valence electron of sulphur =6
so, valency =6-8=-2
hence in their valence shell 8 electron found , so, Neon valency is8-8=0
Cl configuration 1s^2,2s^2,2p^6,3s^2,3p^5
hence chlorine valence electron is 7
so, valency of chlorine is 7-8=-1
sulphur configuration 1s^2,2s^2,2p^6,3s^2,3p^4
hence valence electron of sulphur =6
so, valency =6-8=-2
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