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Observe the following graph for ionisation enthalpies of first, second and third transition series…
Observe the following graph for ionisation enthalpies of first, second and third transition series.
Answer the following questions:
(a)
Why does the ionisation energy increase across a transition series?
(b)
The ionisation energies are nearly equal for first and second transition series but abruptly increases for third transition series. Explain.
(c)
Which element would have higher density, technetium or rhenium? Justify your answer.
Answer
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From ISC 2025 Practice Chemistry, question 82.