istopes have different numbers of neutrons and most of their elements have several istopes
deuterium and tritium.
istopes
they have not been decided yet
neutrons
istopes
Yes, they are isotopes of helium
neutrons
Examples: francium-223 or Fr-223.
Same number of protons; identical or very similar chemical properties.
Isotopes are formed through variations in the number of neutrons in the nucleus of an atom
Istopes: Atoms of the same element that have the same number of protons but a different amount of neutrons.