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A comment on Freshly made plutonium from outer space found on ocean floor. Parent comment

Re:Freshly made plutonium from outer space found on ocean floor by freshair on Friday May 14, 2021 @10:30AM (#27154725)
Is this the reason Hydrogen is grouped with the alkali metals on the periodic table?
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Re:Freshly made plutonium from outer space found on ocean floor by DavidSJ on Friday May 14, 2021 @10:53AM (#27154933)
The most immediate reason is that hydrogen is a group 1 element, meaning its outer (in this case, only) shell contains just a single electron, in its s (spherically symmetric) orbital.

The electronic structure of an element greatly influences its chemical behavior, so elements in the same group tend to be chemically similar. However, hydrogen is a bit of an odd-ball as group 1 elements go.

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