Question

Which of the following statements is true about isotopes?

Answer 1

Isotopes are different forms of an element with the same number of protons but different numbers of neutrons. They may have different atomic masses but exhibit the same chemistry.

Step-by-step explanation:

Isotopes are different forms of an element that have the same number of protons but a different number of neutrons. For example, carbon-12 and carbon-14 are isotopes of carbon. Carbon-12 has 6 protons and 6 neutrons, while carbon-14 has 6 protons and 8 neutrons. Isotopes can have different atomic masses but exhibit the same chemical properties because the number of protons and electrons remain the same.

Answer 2

Isotopes are variants of a particular chemical element which differ in neutron number, although all isotopes of a given element have the same number of protons in each atom. The term isotope is formed from the Greek roots isos and topos, meaning "the same place"; thus, the meaning behind the name is that different isotopes of a single element occupy the same position on the periodic table.