Answer:
Hydrogen is the chemical element with the symbol H and atomic number. Hydrogen is the lightest element.
Explanation:
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Answer:
Hydrogen is the chemical element with the symbol H and atomic number. Hydrogen is the lightest element.
Verified answer
Answer:
" Hydrogen is a chemical element in a periodic table "
Explanation:
it is symbolised as "H", has atomic number and it's valency as 1, it is the lightest element in the whole periodic table.