The atomic number of element A is 12 and that of B is 8 .
a) Find the valencies of these elements by writing their electronic configuration?
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Answered by
7
Answer:
electronic configuration of element A- 2,8,2 - Valency = +2
electronic configuration of element B - 2,6 -
Valency = -2
Answered by
1
Answer:
Element A is Magnesium (Mg) and element B is Oxygen (O)
Electronic configuration of element A= 2, 8, 2.
Therefore the Valency of element A is +2.
Electronic configuration of element B= 2,6.
Therefore the Valency of element B is -2.
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