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Question

Which of the following is/are true regarding hydrogen atom?

A
It has only one electron
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B
It has only one neutron and no proton
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C
It is highly inflammable
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D
It has only one electron in its L-shell
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Solution

The correct options are
A It has only one electron
C It is highly inflammable
Hydrogen is the lightest and simplest known atom. It is an inflammable gas with 1 electron, 1 proton and no neutron in each atom. Thus, its atomic number and mass number is one. The only electron present is in the K-shell of the atom.

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