2elements A and B have same no. of electrons in their valence shell.the no. of electrons present in the second last shell of atom A is two times the no. of electrons present in the second shell of atomB. A and B are ?
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atom a is silicone
2,8,4
atom b is carbon
24
2,8,4
atom b is carbon
24
deadpool0:
please mark as brilliant
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