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Carbon atom C X 2 , 4 6 X atomic number so six electrons X X X X X X.

Published byΔιώνη Λούλης Modified over 5 years ago

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Presentation on theme: "Carbon atom C X 2 , 4 6 X atomic number so six electrons X X X X X X."— Presentation transcript:

1 carbon atom C X 2 , 4 6 X atomic number so six electrons X X X X X X

2 lithium atom Li X 2 , 1 3 X atomic number so three electrons X X X

3 Na sodium atom 2 , 8 , 1 11 X X X atomic number so eleven electrons
X X X X X X X X X X X

4 Ca calcium atom 2 , 8 , 8 , 2 20 X X X X atomic number
so twenty electrons X X X X X X X X X X X X X X X X X X X X

5 2+ Ca calcium ion 2+ [ ] 2 , 8 , 8 20 2+ X X atomic number X
[ ] 2 , 8 , 8 20 X atomic number X positive ion so 20-2 electrons = 18 X X X X X X X X X X X X X X X X X X

6 2+ Mg magnesium ion 2+ [ ] 2 , 8 12 2+ X atomic number X positive ion
[ ] 2 , 8 12 X atomic number X positive ion so 12-2 electrons = 10 X X X X X X X X X X

7 - Cl chloride ion - [ ] 2 , 8 , 8 17 - X atomic number X X
[ ] 2 , 8 , 8 17 X atomic number X negative ion so 17+1 electrons = 18 X X X X X X X X X X X X X X X X X X

8 O oxide ion 2- 2- [ ] 2 , 8 8 2- X atomic number X negative ion
[ ] 2 , 8 8 X atomic number X negative ion so 8+2 electrons = 10 X X X X X X X X X X

9 electron shells (atom)

10 electron shells (ion)

11 References Steve Lewis for the Royal Society of Chemistry

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