Respuesta :

Answer: True

Explanation:

Atomic number is defined as the number of protons or the number of electrons that are present in an electrically neutral atom.

Atomic number = Number of protons = number of electrons = 2

Electronic configuration represents the total number of electrons that a neutral element contains. We add all the superscripts to know the number of electrons in an atom.

The electronic configuration will be [tex]1s^2[/tex]

As its duplet is already complete and it has noble gas configuration , it is stable with 2 valence electrons.

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