Does anyone know what the number in parenthesis next to the standard atomic weight stands for?
Ex.
H
hydrogen
1.00794(7)
What's the 7?
Periodic Table
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Re: Periodic Table
I might be completely wrong so anyone correct me if I'm wrong but it might be the number of isotopes that exists?
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- Posts: 94
- Joined: Wed Sep 18, 2019 12:18 am
Re: Periodic Table
I might be completely wrong so anyone correct me if I'm wrong but it might be the number of isotopes that exists?
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Re: Periodic Table
I believe it is just the next decimal place of the molar mass. It could be that we don’t need to go that far for using molar mass, but just for your information, the next decimal place is there.
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