Question

The periodic table is useful because it is organized to show many patterns and trends. What property shows a decrease moving from the bottom of Group 3 to the top of Group 3?

Answer 1

Atomic radius

Explanation:

A decrease in moving from the bottom of Group 3 to the top of the group shows an increase in trend from top to bottom.

The atomic radius of elements increases from top to bottom and decreases from the bottom to the top.

The elements in group 3 are B, Al , Ga, In and Tl

• Atomic radius is taken as half of the inter-nuclear distance between two covalently bonded atoms of non-metallic elements or half of the distance between two nuclei in the solid state of metals.
• Downs a group from top to bottom, atomic radii increases progressively due to successive shells being added.
• This compensates for the size reducing effect of the increased nuclear charge.

learn more:

Atomic radii brainly.com/question/5048216

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