orbital theory , electron configuration and hybridisation

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13 Terms

1
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what is valency?

bonds needed to complete shell

2
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what is oxygen valency number

2

3
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what is orbital hybridisation?

combination of atomic orbitals to form molecular orbitals

4
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what are sigma bonds?

overlap of single orbital eg 1s orbitals

5
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what are pi bonds?

overlap of 2 double orbitals eg p+p orbital

6
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what is s orbital? (3)

spherical , centred on nucleus, high probability to find e at nucleus

7
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what is a p orbital? (3)

2 dumb bells, at right angles to each other, point of tangent at nucleus

8
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what are d orbitals?

pear shaped , in one plane

9
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what is sp3 name and angle?

tetrahedral, 109.5

10
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what is sp2 name and angle?

trigonal planar, 120

11
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what is sp name and angle?

linear, 180

12
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what is a characteristic of sigma bonds ?

strongest covalent bond

13
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what is a characteristic of pi bonds?

high e density