Problem: Which atom has the smallest radius: element 120, element 119, or element 116?

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We’re being asked to identify the atom has the smallest atomic radius.


Atomic radius represents the distance from the nucleus to the outer shell of an element. 

Trend of atomic radius in the periodic table:

decreases going from left to right of a period

increases going down a group

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Problem Details

Which atom has the smallest radius: element 120, element 119, or element 116?

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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 Trend: Atomic Radius concept. You can view video lessons to learn Periodic Trend: Atomic Radius. Or if you need more Periodic Trend: Atomic Radius practice, you can also practice Periodic Trend: Atomic Radius practice problems.

What professor is this problem relevant for?

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

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.