Number of neutrons = atomic mass - atomic number
126C, 115B 12 - 6 = 11 -5 = 6 (same neutrons)
115B, 105B
146C, 147N
31H, 21H
126C, 105B
Therefore, only 126C, 115B have same neutrons.
Zachary M.
asked • 04/27/23Which pair of elements have the same number of neutrons
Which pair of elements have the same number of neutrons. In 21H, the atomic number is 1 and atomic mass is 2.
Group of answer choices
126C, 115B
115B, 105B
146C, 147N
31H, 21H
126C, 105B
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