Q. 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 element 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?