Problem: Atomic radius generally increases as we move _____.A) down a group and from right to left across a period B) up a group and from left to right across a period C) down a group and from left to right across a period D) up a group and from right to left across a period E) down a group; the period position has no effect

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We are being asked to determine the general trend in the atomic radius

Atomic radius (pl.radii) is defined as half the distance between the nuclei in a molecule of two identical elements (e.g. a diatomic molecule).


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Problem Details

Atomic radius generally increases as we move _____.

A) down a group and from right to left across a period 

B) up a group and from left to right across a period 

C) down a group and from left to right across a period 

D) up a group and from right to left across a period 

E) down a group; the period position has no effect

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Periodic Trends: Atomic Radius concept. You can view video lessons to learn Periodic Trends: Atomic Radius. Or if you need more Periodic Trends: Atomic Radius practice, you can also practice Periodic Trends: Atomic Radius practice problems.

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Based on our data, we think this problem is relevant for Professor Paesani's class at UCSD.