Question 19
The $$1^{st}, 2^{nd}$$ and the $$3^{rd}$$ ionization enthalpies, $$I_1, I_2$$ and $$I_3$$, of four atoms with atomic numbers π, π + 1, π + 2, and π + 3 , where π < 10, are tabulated below. What is the value of π?
Correct Answer: e
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