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Hydrogen 1p+, 1e _ Helium 2p+, 2e _ electron proton neutron The Atom.

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Presentation on theme: "Hydrogen 1p+, 1e _ Helium 2p+, 2e _ electron proton neutron The Atom."— Presentation transcript:

1 Hydrogen 1p+, 1e _ Helium 2p+, 2e _ electron proton neutron The Atom

2 Sub Atomic Particles NameMassChargeLocation Proton1 AMU + 1Nucleus Neutron1 AMU N/ANucleus ElectronN/AElectron Cloud

3 Carbon 6p+, 6e _ Oxygen 8p+, 8e _

4

5 Molecules Chemical bonds hold together two or more atoms of the same or different elements –Ex: Nitrogen gas: N2 Chemical bond: a union between the electron clouds of two atoms Molecules of compounds-elements in proportions never vary.

6 SODIUM ATOM 11 p + 11 e - electron transfer CHLORINE ATOM 17 p + 17 e - SODIUM ION 11 p + 10 e - CHLORINE ION 17 p + 18 e -

7 Do not post photos to Internet 1 mm

8 Molecular Hydrogen (H 2 ) Molecular Oxygen (O 2 ) Water (H 2 O)

9 Covalent bonding Click to view animation.

10 Water moleculeAmmonia molecule Hydrogen bond

11 H H O Slight negative charge at this end Slight positive charge at this end No overall charge

12 Multiple H bonds holding two molecules together

13 Liquid water Ice

14 In-text Figure Page 20

15 Na + Cl – – – – – – – – – – – – + + + + + + + + + + + + + + + + + +

16 cohesion evaporation


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