What is the trend for ionization energy across ... - JAMB Chemistry 2023 Question
What is the trend for ionization energy across a period in the periodic table?
A
Increases from left to right.
B
Remains constant
C
Varies randomly
D
Decreases from left to right
correct option: a
The trend for ionization energy across a period in the periodic table is that it increases from left to right.
Ionization energy is the energy required to remove an electron from an atom, and as you move across a period from left to right, the effective nuclear charge increases, making it more difficult to remove an electron, and hence, ionization energy increases.
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