Question

Suppose an atom has a mass number of 23. which statement is true beyond any doubt? A.the atom has an odd number of neutrons.

B.the atomic number is less then 11.
C.the atom is not an isotope.
D.the number of protons in the nucleus dose not equal the number of neutrons.

Answer 1

i am perfectly convinced that the answer is D.

Answer 2

The number of protons in the nucleus does not equal the number of neutrons is the statement that is true beyond any doubt.