Why is it impossible for an element to have an atomic number of 110.5? (1 point)

A_ Exactly half of the isotopes would need an atomic number of 110, and half would need an atomic number of 111, which is very unlikely.

B_ Atoms of an element all have the same whole number of protons and neutrons.

C_ Atoms with atomic numbers greater than 100 are unstable.

D_ Atoms of an element all have the same whole number of protons.

Respuesta :

Answer:

C

Explanation:

I asked my teacher

The number of protons in an atom are always whole numbers hence it is impossible for an element to have an atomic number of 110.5. The correct answer is option D: Atoms of an element all have the same whole number of protons.

We define the atomic number as the number of protons in an atom. The number of protons in all the atoms of en element must be a whole number.

There is no half proton in the atom hence we can not have an atomic number of 110.5.

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