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I'm kind of confused

On my edexcel C2 paper, there was this question that now I think of it I may have got wrong. It was something about stating the total number of atoms in Al(NO3)3. Is the total number of atoms the same as the atomic number of the compound or are they two different things?

Please help!

The total Number of Atoms in this case would be 13, 1 Aluminium, 3 Nitrogen's and 9 Oxygen's. Atomic numbers show the number of electrons/protons in a single atom and is different to the Number of Atoms.

OP

Ohhh, which means I'm pretty sure I got that question wrong 😓. Thank you anyway!

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