alyssa32900
30.03.2020 •
Chemistry
An element with an atomic number of 11 and an atomic mass of 23 will have how many neutrons total?
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Ответ:
Hey there!
The atomic mass is the sum of protons and neutrons.
So 11 + n = 23.
Solve for n.
11 - 11 + n = 23 - 11
n = 12
The element will have 12 neutrons.
Hope this helps!
Ответ:
BOTH SAMPLES WILL HAVE SAME NUMBER OF UNDECAYED ATOMS
Explanation: