Both protons and neutrons are located inside the nucleus of an atom. changing the number of neutrons in the nucleus would form different isotopes of the same element. which of these best describes the outcome of decreasing the number of protons in the nucleus?
a) the element would become an ion.
b) the atom would become a different element.
c) the number of neutrons would also decrease.
d) the atomic mass of the element would increase.

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant.