Isotopes

ISOTOPES
• Atoms of an element are not always identical.
• All the atoms of the same element can contain different number of neutrons.
• These atoms are called Isotopes.
• Isotopes are atoms of the same element having same atomic number but different mass number.
E.g.: - Hydrogen has 3 isotopes.

• Isotopes of the same element have similar decimal properties but different physical properties.
E.g.: - Isotopes if hydrogen that is Protium, Deuterium and Tritium have different boiling point.
• This is because the chemical property of an atom depends on the number of protons & electrons of an atom as isotopes of the same element have same atomic number (proton number) they have similar chemical properties.