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Which one of the following elements will be an isobar of calcium if the atomic number of calcium is 2 0 and its mass number is 40?
Element with 18 neutrons and 20 protons
Element with 19 neutrons and 18 protons
Element with 19 neutrons and 20 protons
Element with 18 neutrons and 22 neutrons
Isobar: one of two or more atoms having equal atomic weights but different atomic numbers. Mass number Electrons Neutrons Calcium 40 20 20 Argon 40 18 22
By: Ketan Garg ProfileResourcesReport error
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