Determine the number of neutrons for the given isotopes.

helium-3
Choose...

carbon-14
Choose...

nitrogen-15
Choose...

strontium-90
Choose...

tellurium-123
Choose...

helium-3 has 1 neutron.

carbon-14 has 8 neutrons.
nitrogen-15 has 8 neutrons.
strontium-90 has 52 neutrons.
tellurium-123 has 70 neutrons.