- #1
Gavroy
- 235
- 0
hi
i have a question about nuclear spin
if the number of protons and neutrons is even, then my chemistry book says, that the nuclear spin is always zero.
i guess that the reason is, that there are always 2 protons and 2 neutrons in one state with opposite spin and therefore the overall spin is zero, so that's all right for me.
but then:
if the number of protons and neutrons is odd, then my chemistry book says, that the nuclear spin is some number like 1,2,3,4 and so on.
how so?
i mean, if i have let me say 19 protons and 9 neutrons, then there are 18 protons that give me zero spin(after the first rule) and 8 neutrons that give me zero spin(also after the first rule)
therefore i would say, that this proton and neutron could give me only 1, but not 2 or more...or are these rules not correct or where am i wrong?
i have a question about nuclear spin
if the number of protons and neutrons is even, then my chemistry book says, that the nuclear spin is always zero.
i guess that the reason is, that there are always 2 protons and 2 neutrons in one state with opposite spin and therefore the overall spin is zero, so that's all right for me.
but then:
if the number of protons and neutrons is odd, then my chemistry book says, that the nuclear spin is some number like 1,2,3,4 and so on.
how so?
i mean, if i have let me say 19 protons and 9 neutrons, then there are 18 protons that give me zero spin(after the first rule) and 8 neutrons that give me zero spin(also after the first rule)
therefore i would say, that this proton and neutron could give me only 1, but not 2 or more...or are these rules not correct or where am i wrong?