Question

what is atomic number of hydrogen

Answer 1

Hey friend!!

Here's ur answer..

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Atomic number of hydrogen is 1.

Atomic number of any element = number of Protons = number of electrons.


✴️ Hydrogen has 3 Isotopes :
1. Protium
2. Deutarium
3. Tritium.


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Answer 2

Hydrogen is a chemical element with symbolH and atomic number 1. With a standard atomic weight of 1.008, hydrogen is the lightest element on the periodic table. Itsmonatomic form (H) is the most abundantchemical substance in the Universe, constituting roughly 75% of all baryonicmass.[7][note 1] Non-remnant stars are mainly composed of hydrogen in the plasma state. The most common isotope of hydrogen, termed protium (name rarely used, symbol1H), has one proton and no neutrons.


Atomic number (Z) 1
Groupgroup  1
Periodperiod.  1
Element category   diatomic nonmetal
Block. s-block
Electron configuration. 1s1
Electrons per shell. 1