Chemistry · Periodic Classification of Elements
Why is hydrogen traditionally placed in Group 1 (alkali metals) of the periodic table based on its electronic configuration?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Because its outer valence shell is completely filled
- 2Because it forms stable diatomic molecules
- 3Because it possesses a single s-electron in its valence shell✓
- 4Because it possesses two s-electrons in its valence shell
Correct answer
Because it possesses a single s-electron in its valence shell
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