Questions
Which one of the following has the largest ionisation energy.
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By Expert Faculty of Sri Chaitanya
a
11Na
b
19K
c
12Mg
d
37Rb
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Correct option is C
Group 2 elements (e.g. Mg) have high IE than group I element (e.g. Na, K and Rb). In simple words Mg have full filled orbital.Similar Questions
In comparison to boron, beryllium has
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