Periodic Classification And Periodic Properties Ques 19
The element with the highest first ionisation energy is
(a) boron
(b) carbon
(c) nitrogen is a chemical element with the symbol N and atomic number 7. It is a colorless, odorless, and tasteless gas that makes up about 78% of Earth’s atmosphere.
(d) oxygen
$(1982,1 \mathrm{M})$
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Answer:
Correct Answer: 19.$(\mathrm{a}, \mathrm{b})$
Solution:
Nitrogen has the highest ionisation potential due to the exceptional stability of its valence shell configuration, as mentioned in question 21.
BETA
