Chemistry, asked by sakshi24, 1 year ago

what are first 20 element with their valency

Answers

Answered by Bhavya333
2
FIRST TWENTY ELEMENT AND THEIR VALENCY INCLUDE;
HYDROGEN      1
HELIUM             0
LITHIUM             1
BERYLLIUM       2
BORON             3
CARBON          2,4
NITROGEN       3,5
OXYGEN          2     
FLUORINE       1
NEON              0
SODIUM          1
MAGNESIUM   2
ALUMINUM      3
SILICON          4
PHOSPHORUS  3,5
SULFUR             2,4,6
CHLORINE        1,3,5,7
ARGON              0
POTASSIUM        1
CALCIUM            2


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