Question

Which of these statements is not true?
A)Atoms of the same element can have different masses
B)The nucleus of an atom has a positive charge
C)Atoms of isotopes of an element have different numbers of protons
D)Atoms are mostly empty space

Answer 1

Answer:

C

Explanation:

should be different numbers of neutrons

Answer 2

The atomic isotopes have the same number of electrons and protons but varying neutrons. Thus, option C is correct.

Atoms are the smallest unit of matter. They are composed of electrons, neutrons, and protons as subatomic particles.

The structure of the atom has been constituted of a centrally situated positively charged nucleus, and negatively charged electrons revolving around it. The atom has an empty space with revolving electrons.

The atoms with the same atomic number and different mass have been termed isotopes. The isotopes have the same number of electrons and protons but varying neutrons. Thus, option C is correct.

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