Multiple choice

In modern periodic table , what happens when we go from left to right in a period ?

  1. Atomic size increases

  2. Atomic size decreases

  3. No change in atomic size

  4. Atomic size first increases and then decreases
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

when we go from left to right in a period the effective nuclear charge of an atom increases and therefore the attraction between the nuclear charge and the shells(electrons) increases hence the atomic size of an atom decreases

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