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it is above elements name ,atomic no, electronic configuration,valency, electrone
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ELEMENTS NAME ARE
=Boron(B),Carbon(C), Calcium(Ca)
ITS ATOMIC NUMBERS WHICH ARE GIVEN IN THE ABOVE
=5,6 and 20
ELECTRONIC CONFIGURATIONS ARE IN KLMN SHELLS
=2,3
=2,4
=2,8,8,2
VALENCEIS ARE
3 4 2
ELECTRONS ARE
number of electrons=number of atomic number
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