SCIENCE

periodic table

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  • Created by: Cally
  • Created on: 31-03-12 11:35

PERIODIC TABLE

ELEMENTS- A SUBSTANCE MADE OF ONLY ONE TYPE OF ATOM

COMPOUND- A SUBSTANCE MADE OF TWO OR MORE ATOMS BONDED TOGETHER.

NITROGEN IS AN UNREACTIVE GAS THAT PREVENTS OTHER CHEMICAL REACTIONS FROM TAKING PLACE.

HYDROGEN WILL BURN WITH A SQUEEKY POP IF PRESENT.

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