Because their abundance is not the same.
they are known as isotopes. Dont ask people to do your homework
youm dont
Isotopes are atoms of an element that have the same number of protons but different numbers of neutrons. For example, carbon-12 and carbon-14 are isotopes of carbon. Carbon-12 has 6 neutrons, while carbon-14 has 8 neutrons.
You dont
The discovery of isotopes contradicts Dalton's theory because isotopes are atoms of the same element with different numbers of neutrons. According to Dalton's theory, all atoms of the same element should have the same mass, which is not the case with isotopes. This shows that atoms of the same element can have different masses, challenging Dalton's idea of indivisible and identical atoms.
When i had my 7 week scan theywere both 6.5mm. i dont know if this is average / normal.
no you get a random element and you dont change it
i dont think of myself as a girl with schizophrenia, i think of myself as nancy
you dont. if you dont know then go find out
i dont no
normal people dont. Guess your not normal.
i dont think it is. it should be "not normal" or "abnormal"