Question

A proton has a positive charge (+1). An electron has a negative electrical charge (-1). If an atom is electrically neutral, its total charge will be 0. If a helium atom consists of exactly two protons and two electrons, is it electrically neutral? Solve and explain.

Answer 1

Step-by-step explanation:

YA IT WILL BE ELECTRICALLY NEUTRAL...

2(1)-2(-1)=0

...

in fact helium is a noble gas ... it is inert in nature also ....

hope this will help you....

Answer 2

Yes the helium atom is electrically neutral .

Explanation :

• ∴Since the charge on a proton is +q.

• And the charge on an electron is -q.

• ∴Since helium atom is having two protons and two electrons .

• So the net charge on a helium atom will be given as :

    $Q_{net} =$ Charge on two protons  - Charge on two electrons

   $Q_{net} = 2\times 1 - 2 \times (-1)\\ Q_{net} = 0$