How do you name an isotope?
Because the number of neutrons is different, the mass number is different.
Isotopes are written in two different ways.
They can be written using their symbol with the mass number (to the upper left) and atomic number (to the lower left) or the isotope name is written with a dash and the mass number.
How do you write an isotope symbol?
To write the symbol for an isotope, place the atomic number as a subscript and the mass number (protons plus neutrons) as a superscript to the left of the atomic symbol.
What does the isotope number mean?
Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number. The number of nucleons (both protons and neutrons) in the nucleus is the atom’s mass number, and each isotope of a given element has a different mass number.
What is isotope and example?
For example, an atom with 6 protons must be carbon, and an atom with 92 protons must be uranium. A third form of hydrogen known as tritium has one proton and two neutrons: its mass number is 3. When an element’s atoms have different numbers of neutrons they are said to be isotopes of that element.