jellyandjam
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Well.. i got the first question on a practice paper wrong.. brilliant i know :/

Table 1 shows some data about fundamental particles in an atom.
Table 1
1 (a) (i) An atom of hydrogen can be represented as 1H
Use data from Table 1 to calculate the mass of this hydrogen atom.

Proton - mass - 1.6725x10^-24
Neutron - mass - 1.6748x10^-24
Electron - mass - 0.0009x10^-24

could you lease tel me how the answer is 1.6734 × 10–24 (g) ?
I'm reallly confused
thanks
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MA1998
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1 hydrogen atom contains one electron and one proton. So to find the mass of the hydrogen you need to add the mass of an electron and the mass of a proton.
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jellyandjam
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(Original post by MA1998)
1 hydrogen atom contains one electron and one proton. So to find the mass of the hydrogen you need to add the mass of an electron and the mass of a proton.
thanks
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