What is isotope and example?
The atoms belonging to the same element, having same atomic number Z, but different mass number A, are called isotopes. For example, carbon-12, carbon-13 and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13 and 14 respectively.
Why isotopes are called?
Three nuclei with one proton are known that contain 0, 1, and 2 neutrons, respectively. The three share the place in the periodic table assigned to atomic number 1 and hence are called isotopes (from the Greek isos, meaning same, and topos, signifying place) of hydrogen.
What is called isotopes Class 10?
An isotope is a variation of an element that possesses the same atomic number but a different mass number. A group of isotopes of any element will always have the same number of protons and electrons. They will differ in the number of neutrons held by their respective nuclei.
What are the 3 main isotopes?
The three naturally occurring hydrogen isotopes are protium, deuterium, and tritium. These isotopes can also be referred to with the element name and their mass number.