601629
601629 601629
  • 18-09-2019
  • Chemistry
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Could I have some help with this question please

Could I have some help with this question please class=

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jdl99 jdl99
  • 18-09-2019
The periodic table is arranged by its atomic number which increase as you move across and down. The atomic number is how many protons the elements atom has. All elements are perfectly arranged by their properties like non-metals, metals, metalloids, gases etc.
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