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ChemistryChemistry
5 December, 04:41

Which statement describes a periodic trend of atomic radius?

O

A. It tends to decrease from left to right across a period.

O

B. It remains the same within a period.

O

c. It remains the same within a group.

O

D. It tends to decrease from top to bottom of a group.

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Answers (1)
  1. 5 December, 06:58
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    Answer:A. It tends to decrease from left to right across a period

    Explanation: This trend is caused by the increase number of protons in an atoms nucleus when moving across a period. The protons pull the electrons towards the nucleus causing the atomic radii to shrink and gets smaller or also called as electron shielding.
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Home » Chemistry » Which statement describes a periodic trend of atomic radius? O A. It tends to decrease from left to right across a period. O B. It remains the same within a period. O c. It remains the same within a group. O D.
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