Responses
Atoms of an element all have the same whole number of protons and neutrons.
Atoms of an element all have the same whole number of protons and neutrons.
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.
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.
Atoms with atomic numbers greater than 100 are unstable.
Atoms with atomic numbers greater than 100 are unstable.
The atomic number is the number of protons, which is always a whole number.
1 answer
The correct response is:
The atomic number is the number of protons, which is always a whole number.
Atomic numbers represent the number of protons in the nucleus of an atom, and since protons are counted as whole units, atomic numbers must be whole numbers. An atomic number of 110.5 would not make sense in the context of atomic structure.
