please answer it fast
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Answer:
Hydrogen
pls thank and mark it as the brainliest
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Answer:
THE ANSWER IS HELIUM .
BECAUSE WHEN WE MOVE LEFT TO RIGHT ON THE PERIODIC TABLE THE ATOMIC SIZE DECREASE .
Explanation:
PLEASE MARK THIS ANSWER AS BRAINLIEST ANSWER SO THAT YOU WILL GET EXTRA 3 POINTS .
HOPE THIS HELPS YOU !!
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