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Chemistry Revision Checklist

Chemistry PM Page 1

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Chemistry PM Page 2

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Chemistry PM Page 3

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Chemistry PM Page 4

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Chemistry PM Page 5

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Topic 1.1
29 December 2011

Atomic Number: The number of protons in the nucleus
Mass Number: The number of protons and Neutrons in the nucleus
Isotope: Elements with the same chemical formula, different structural formula
Relative atomic Mass: av mass of one atom of an element/1/12*mass of c12

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After the Questions/ Revision Booklet
05 January 2012

Cr and Cu are the awkward ones:

Cr: [Ar] 4s13d5 This cost me 16% in the questions!
Cu:[Ar] 4s1 3d10

Molecular Mass:

Molecular mass is the highest peak on a mass spectrometer graph This cost me 2%

First Ionisation Energies decrease…

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Topic 1.2
30 December 2011

Cation: A group of positively charged ions

Anion: A group of negatively charged ions

Na Na + + e-

Pasted from

Cl + e - Cl -

Pasted from

See Topic 1.2 Ext On Next Page

Moles = mass ÷molar mass


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Topic 1.2 Ext
30 December 2011

Chemistry PM Page 9

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Topic 1.3
30 December 2011

Ionic Bond: The outer shells of the atom are completed by giving away or taking electrons to form
positive or negative ions.

Covalent Bond: The sharing of electrons in the outer shell of an atom

Metallic Bond: A regular lattice structure of close packed…


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