explain valency and can be they found
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Answered by
5
heya mate...
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here is the answer...
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the no. of elections an atom can lose or gain during a chemical reaction is know as valency...
for example : sodium belongs to group 1A. its nearest noble gas is neon. it will lose one electron to get neon configuration. so the valency of sodium is one...
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hope you like my answer...
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.
.
.
here is the answer...
.
.
the no. of elections an atom can lose or gain during a chemical reaction is know as valency...
for example : sodium belongs to group 1A. its nearest noble gas is neon. it will lose one electron to get neon configuration. so the valency of sodium is one...
.
.
.
hope you like my answer...
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.
.
gurvirchauhan:
thanks
Answered by
4
Valency tells us how many electrons does an atom need to loose, gain and share to attain a stability to form a compound.
1) Hydrogen (H) :- +1
2) Helium (He) :- 0
3) Lithium (Li) :- +1
4) Beryllium (Be) :- +2
5) Boron (B) :- +3
6) Carbon (C) :- ±4
7) Nitrogen (N) :- -3
8) Oxygen (O) :- -2
9) Fluorine (F) :- -1
10) Neon (Ne) :- 0
11) Sodium (Na) :- +1
12) Magnesium (Mg) :- +2
13) Aluminium (Al) :- +3
14) Silicon (Si) :- ±4
15) Phosphorus (P) :- -3,-5
16) Sulphur (S) :- -2
17) Chlorine (Cl) :- -1
18) Argon (Ar) :- 0
19) Potassium (K) :- +1
20) Calcium (Ca) :- +2
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