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Question
Give reason for the following:
Ionisation potential of the element increases across a period.
Solution
As atomic size decreases and nuclear charge increases, it becomes more difficult to remove electrons, requiring more energy and increasing electron potential.
RELATED QUESTIONS
Represent ionisation potential in the form of an equation. In which unit it is measured?
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| Element | Atomic number | No. of electrons in the valence shell | Group to which the element belongs |
| A | Z - 1 | ||
| B | Z | ||
| C | Z + 1 |
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