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atomic weight - protons = neutrons,
Na-23 has an atomic weight of 23 amu, and 11 protons so 23-11=12 neutrons
Justus Rau ∙
23 of them
23 hours is not a whole day
23 hours is 82,800 seconds.
23 days = 1,987,200 seconds.
805/23=35
23.2=
261
23
Two: 1 and 23
23 of them.
There are 2 tens in 23
23 000.
92 divided by 4 is 23.
23 hectometers is 230,000cm