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29/09/2021 8:46 pm
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The electronic configurations of three elements A, B and C are as follows :
A 2, 8, 1
B 2, 8, 7
C 2, 4
(a) Which of these elements is a metal?
(b) Which of these elements are non-metals?
(c) Which two elements will combine to form an ionic bond?
(d) Which two elements will combine to form a covalent bond?
(e) Which element will form an anion of valency 1?
1 Answer
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29/09/2021 8:47 pm
(a) A is a metal
(b) B and C are non-metals
(c) A and B combines to form an ionic bond.
(d) B and C combines to form a covalent bond.
(e) B will form an anion with valency 1 since it needs only 1 electron to complete its octet.