Picture shown! At 3 mmHg and 500C water exists as a Liquid Solid Gas
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As we know, Number of protons = Atomic Number
So,
- Number of protons = 12
And, Atomic mass = Number of protons + Number of Neutrons (N)
therefore ~
- 31 = 12 + N
- N = 31 - 12
- N = 19
Number of Neutrons = 19
Hope this helps!! And maybe makes you smile!! I struggle with chemistry as well (and I’m in AP chem ;) )
