Yes isotopes still exist. There are mainly two that exist on earth uranium-238, uranium-235. Does that answer your question.
HDT
Isotopes were not invented - they exist in nature. They were discovered when the atomic mass of Chlorine was measured at 35.5
45000000
All the isotopes from the decay chains exist in these rocks. The most important are the dangerous isotopes of radium and radon.
The element Q doesn't exist.
No most of them are not isotopes. Few elements exist as isotopes.
HDT
Isotopes of elements exist. There are no isotopes for compounds and calcium chloride is a compound.
Isotopes were not invented - they exist in nature. They were discovered when the atomic mass of Chlorine was measured at 35.5
45000000
All the isotopes from the decay chains exist in these rocks. The most important are the dangerous isotopes of radium and radon.
The element Q doesn't exist.
Yes, there are synthetic isotopes of argon.
No. Isotopes exist because atoms with the same number of protons per nucleus can have differing numbers of neutrons per nucleus.
In the periodic table only the chemical elements appear; but tables for isotopes also exist.
Two natural isotopes of bromine are known:- bromine-79: 50,69 %- bromine-81: 49,31 %
All the isotopes of a chemical element are identical; some differences exist for light elements (ex. H or D).