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Chemistry Revision Checklist




Chemistry PM Page 1

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Chemistry PM Page 4

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Topic 1.1
29 December 2011
16:26




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
Relative…

Page 7

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After the Questions/ Revision Booklet
05 January 2012
11:48




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…

Page 8

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Topic 1.2
30 December 2011
11:08




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

Moles=concentration…

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Topic 1.2 Ext
30 December 2011
12:23




Chemistry PM Page 9

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Topic 1.3
30 December 2011
12:36




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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