The discovery of the neutron helped people understand why the nucleus is much mo
ID: 1374839 • Letter: T
Question
The discovery of the neutron helped people understand
why the nucleus is much more massive than the electrons in an atom .
how electrons are attracted to the nucleus.
why the nucleus has a positive charge.
how two atoms of the same element can have different atomic masses.
a.why the nucleus is much more massive than the electrons in an atom .
b.how electrons are attracted to the nucleus.
c.why the nucleus has a positive charge.
d.how two atoms of the same element can have different atomic masses.
Explanation / Answer
Answer is option (d)
Because: Atom consists of electron which are negatively charged, protons which are positively charged and neutrons which are neutral in nature. Electrons rotate around the nucleus. Nucleus consists of protons and neutrons.
Atomic mass of an atom consists of (appro) mass of neutrons and protons. Hence, the atom of an element may have same atomic number (no. of protons) but have different atomic mass.
Hence, answer is d.
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