Dec 12, 2025 · What is an isotope? An isotope is one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table and nearly …

From left to right, the isotopes are protium (1 H) with 0 neutrons, deuterium (2 H) with 1 neutron, and tritium (3 H) with 2 neutrons. Isotopes are distinct nuclear species (or nuclides) of the …

Sep 13, 2019 · Isotopes share the same chemical properties but may have different nuclear stability and physical properties. Some isotopes are stable, while others are radioactive and …

Aug 19, 2022 · Like everything we see in the world, isotopes are a type of atom, the smallest unit of matter that retains all the chemical properties of an element. Isotopes are forms of a …

What is an isotope? An isotope is an atom that has the same number of protons and a different number of neutrons. The atom is still considered the same element (still contains the same …

Aug 31, 2025 · Understanding isotopes sheds light on the subtle diversity within the atomic world. Isotopes are different versions of the same chemical element. They are atoms with the same …

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.