It says in the periodic table that Chlorine has a relative atomic mass of 35.5.
2007-11-12 00:35:52 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
The natural distribution of isotopes of chlorine.
Chlorine has isotopes with mass numbers ranging from 32 to 40. There are two principal stable isotopes, 35Cl (75.77%) and 37Cl (24.23%), giving chlorine atoms in bulk an apparent atomic weight of 35.5 g/mol.
2007-11-12 00:44:48 · answer #1 · answered by Paul B 2 · 2⤊ 0⤋
Chlorine Mass Number
2016-10-15 12:32:28 · answer #2 · answered by grable 4 · 0⤊ 0⤋
Nice question.
The relative atomic mass of many elements is very close to a whole number. This was noticed over 150 years ago by a Scottish doctor called Prout, who suggested that all the elements were made from hydrogen.
This was a good guess in a way. We now know that every nucleus is made up of protons and neutrons, and that protons and neutrons have a relative atomic mass very close to one. So if an element consists almost entirely of only one isotope. its relative atomic mass will be close to a whole number.
Chlorine has two isotopes, 35Cl (around 75%), and 37Cl (around 25%), and the relative atomic mass for chlorine is just the weighted average of these.
2007-11-12 00:45:43 · answer #3 · answered by Facts Matter 7 · 0⤊ 1⤋
believe the periodic table
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2007-11-12 00:46:33 · answer #4 · answered by tiya b. 2 · 0⤊ 0⤋