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AS Chemistry Unit 1 - HELP!!
Hi,
How on earth do you do those questions when it is like:
An element, X, has twice as many protons and four less neutrons than Y.
I HATE them, and never seem to get them.
Also, is like 12C ... is the 12 the number of Protons + Neutrons.. or is it just the mass?
I know it is easy, but I hate them.
How on earth do you do those questions when it is like:
An element, X, has twice as many protons and four less neutrons than Y.
I HATE them, and never seem to get them.
Also, is like 12C ... is the 12 the number of Protons + Neutrons.. or is it just the mass?
I know it is easy, but I hate them.
Okay, thanks. The rest I just need to work out, by trial and error. 
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