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6. What can you tell from an element by which period it's in?

  • The mass of the element
  • If it's a lustrous element
  • The number of electron shells it has
  • The number of electrons in its' outer shell

7. What ratio do these react in? Be + F

  • 2:2
  • 1:1
  • 1:2
  • 2:1

8. What ration do these react in? Li + O

  • 2:2
  • 2:1
  • 1:1
  • 1:2

9. Difference in appearance of iron and sulfur

  • Iron (grey, small, sharp filings), Sulfur (yellow powder)
  • Iron (grey powder), Sulfur (red powder)
  • Iron (yellow powder), Sulfur (grey. small, sharp filings)
  • Iron (rusty, copper-like filings), Sulfur (yellow gas)

10. What ratio do these react in? Na + O

  • 1:2
  • 2:2
  • 2:1
  • 1:1

11. The sum of the protons and neutrons in the nucleus is...

  • The relative atomic mass
  • The mass number
  • The proton number
  • The atomic number

12. Which metals are magnetic?

  • Silver, iron, aluminium
  • Iron, nickel, cobalt
  • Copper, iron, magnesium
  • Iron, magnesium, sodium

13. What is the relative mass of an electron?

  • 1.2
  • 1/200
  • 1/2000
  • 1

14. What ratio do these reaction in? Ca + O

  • 1:1 (CaO)
  • 2:2 (2CaO)
  • 1:2 (CaO2)
  • 2:1 (Ca2O)

15. What is the overall charge of an atom?

  • Positive charge
  • Charge is too small to measure
  • No charge/ neutral charge
  • Negative charge

16. Non-metals like sulfur, phosphorus and nitrogen oxides turn universal indicator what colour? Showing what?

  • Red- showing they form basic oxides.
  • Red- showing they form acidic oxides.
  • Blue- showing they form basic oxides.
  • Blue- showing they form acidic oxides.

17. Define a compound

  • A mixture made of two or more different elements.
  • A substance made of two or more of the SAME elements, chemically combined in fixed positions.
  • A substance that is made up of two or more DIFFERENT elements and chemically combined in fixed positions.
  • A substance made of two or more different elements that aren't chemically combined.

18. What can you tell from an element by which group it's in?

  • The number of neutrons in its' nucleus
  • The number of electrons in its' outer shell
  • The number of electron shells it has
  • The relative charge

19. What is the electron configuration of nitrogen?

  • 2,4,1
  • 2,8
  • 2,5
  • 2,6

20. Roughly, how does the size of the atom compare to the size of its' nucleus?

  • 200,000 times smaller
  • 20,000 times bigger
  • 20,000 times smaller
  • 2,000,000 times bigger