Question

The first ionization enthalpy AH, and second ionization enthalpy AH, and electron
zain enthalpy (Leg H) of few element are given.
Element AH, (KJ/mol) AH,(KJ/mol) (reg H) (KJ/mol)
A
520
7300
60
738
1451
40
C С
1681
3374
-328
D
2372
5251
448
ower the following, which element is:
1) Least reactive element.
2) An Alkali meal
3) Most reactive non metal,
4) Metal which form halide of the type MX,
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Answer 1

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