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The helium balloon you got on your birthday has almost entirely deflated, but there is still a very small amount of 4He inside with a total mass of 160 amu. How many protons and how many electrons are present in the balloon (assuming only 4He is there)?

Respuesta :

Answer:

It has 8 electrons and 8 protons.

Explanation:

Given that we have a deflated balloon with 4 atom (more precisely, 4 mono-atomic molecules) of helium element. A Helium atom has 2 electrons and 2 protons along with 2 neutrons.

So the no. of electrons of He in the balloon:

[tex]n_e=4\times 2=8[/tex]

So the no. of protons of He in the balloon:

[tex]n_p=4\times 2=8[/tex]

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