Question

which of the following statements about isotopes is false

Which of the following statements about isotopes is false? Select one: O a. An isotope with more neutrons will have a greater mass than an isotope with fewer neutrons. O b. All of the above are true. c. Isotopes are atoms with same number of protons but different numbers of neutrons. d. Isotopes are atoms with the same atomic number but different mass numbers. O e. Most elements naturally have more than one isotope.

Answer 1

Isotope: An isotope of a chemical element is an atom that has a different number of neutrons (that is, a greater or lesser atomic mass) than the standard for that element. The isotopes of a chemical element have same numbers of proton. Therefore they have same atomic number but different mass number. An isotope with more neutrons will have a greater mass than an isotope with fewer neutron (mass of one neutron=1.674927471x10-27 kg). Most atom have several naturally occurring isotopes. The statements from the question are all correct. Since the question says, there is a false option. I think the option 'b' (All of the above are true) is false. Because this statement is not about isotopes, it is about the other statements present in the question.