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Michael L. Bishop, Edward P. Fody, Carleen Van Siclen • ISBN 9781284238860
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Give the meaning of the term electronegativity 1 mark The ability of an element to attract a pair of electrons in a covalent bond 
Ions of two isotopes of iron are 53Fe2+ 56Fe2+ 
Which statement is correct? 
- the ions of both the isotopes have configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d6 
- the ions of both the isotopes contains 26 neutrons 
- 53Fe2+ has fewer protons that 56Fe2+ 
- after acceleration to the same kinetic energy 56Fe2+ will move more slowly that 53Fe2+ after acceleration to the sam...
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AS Level Chemistry A 
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AS Level Chemistry A 
H 0 3 2 / 0 2 Depth in chemistry