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Chemistry paper 1 > Development Of Periodic Table And Group 0 > Flashcards

Development Of Periodic Table And Group 0 Flashcards

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1
Q

1864

A

John Newlands arranged them in atomic weight but only 63 were known

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2
Q

1869

A

Mendeleev left gaps for discovery, organised them in order of increasing atomic number (no. of protons)

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3
Q

Group 0

A

NOBLE GASES

  • full outer shell of electrons
  • very stable electron configuration, VERY UNREACTIVE NON METALS
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Chemistry paper 1 (16 decks)

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