Atoms with the same atomic number but different mass numbers are called isotopes.
There are two types of carbon atoms that are found in nature. We call them carbon-12 and carbon-13. Using symbols, carbon-12 and carbon-13 can be written as follows:
|The symbol describes carbon-12 as follows:
||The symbol describes carbon-13 as follows:
- carbon-12 and carbon-13 are atoms that have the same atomic number but different mass numbers. Carbon-12 and carbon-13 are called isotopes.
- carbon-12 has 6 neutrons and carbon-13 has 7 neutrons.
- isotopes of the same element (i.e. such as carbon-12 and carbon-13) have similar chemical properties.
BCIT courses: CHEM 0011