AP BIOLOGY

Detailed explanation-1: -Isotopes are atoms of the same element that have different numbers of neutrons but the same number of protons and electrons. The difference in the number of neutrons between the various isotopes of an element means that the various isotopes have different masses.

Detailed explanation-2: -Atoms with the same number of protons but different numbers of neutrons are called isotopes. They share almost the same chemical properties, but differ in mass and therefore in physical properties.

Detailed explanation-3: -Nuclei with the same number of protons but a different number of neutrons are called isobars. Nuclei with the same number of neutrons but a different atomic number are called isotopes.

Detailed explanation-4: -Isotopes are atoms of the same element that have the same number of protons (i.e., atomic number, “Z") but a different number of neutrons, meaning that their mass number, “A", varies.

Detailed explanation-5: -What are Isobars? Isobars are atoms (nuclides) of different chemical elements which differs in the chemical property but has the same physical property. So, we can say that isobars are those elements which have a different atomic number but the same mass number.