Question

1.If you added a proton to a nucleus, you would change *


*The element but not the mass

*The element and the mass

*The mass but not the element

*Neither the mass nor the element

please choose the correct answers from 4 answers above please.


2.If you added an electron to an element, you would change


*The mass

*The charge

*The element

*The stability of the nucleus

please choose the correct answers from 4 answers above please

answer it in English not in Indian please

Answer 1

Answer:

1. B. The element and the mass

2. B. The charge

Explanation:

1. Adding a proton to the nucleus will change the atomic number and subsequently the element, too, as element is determined by atomic number.

Mass of proton is 1u and therefore the mass number of nucleus would change as well.

2. Electron doesn't have a significant mass, its mass is negligible compared to that of a proton or neutron, and neither is it counted in the atomic number (atomic number=no. of protons) and so the element won't change. It doesn't affect stability of the nucleus either, as that depends on protons and neutrons. Therefore, adding an electron to an atom merely gives it a negative charge.

hope it helped you..

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