What is the valency of element having atomic number 5-15?
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Answer:
: 15 atomic number in periodic table is phosphorus with valency of +3 and +5.21-Aug-2020
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Answer:
It changes with atomic number.
boron : 3
Carbon: 4
nitrogen:3
oxygen: 2
fluorine:1
neon:0
sodium:1
magnesium:2
aluminum:3
silicon:4
Phosphorus:3
sulphur:2
chlorine:1
argon:0
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