its 17*2 = 34
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Chlorine is a chemical element with atomic number 17, which means it has 17 protons in its nucleus. In its natural form, it has two stable isotopes, chlorine-35 and chlorine-37. These isotopes have different numbers of neutrons but the same number of protons, making them the same element.
Chlorine has a lot of different isotopes but the 2 stable ones are chlorine 35 and chlorine 37
In one molecule of NaCl there are two ions, Na+ and Cl-.
A chemical element contain only atoms of this element (sometimes different from the mass number because many have isotopes).
There is 13 isotopes in the element boron. xD
All atoms of the same element contain the same number of protons and electrons, but atoms of a given element may have different numbers of neutrons. Atoms with the same number of protons but different numbers of neutrons are called isotopes. An element has many isotopes--each with a close, but different number of neutrons.
copper has 2 stable isotopes
Seaborgium (Sg) has 17 isotopes - including isomers and metastable isotopes.
Usually only one. However, some such as chlorine gas are amixture of isotopes and thus in certain cases there can be more than 1.
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Many elements have different isotopes: 1) Carbon - Carbon 12, Carbon 14 2) Hydrogen - Protium, Deuterium, Tritium 3) Chlorine - Chlorine 35, Chlorine 37 etc