1
Q
what is electronegativity
A
the power of an atom to attract bonding electrons towards itself in a covalent bond
2
Q
increases going up the group
A
because bonding electron pairs close to nucleus attracting it
3
Q
increases across the period
A
nuclear charge attracting binding pair is grater
number electron shells shielding bonding pair of electrons from the nucleus is the same
btec chemistry
flashcards
Decks in class (31)
# Cards
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Topic 2 - balancing equations5
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Topic 2 - RAM, RMM moles10
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Topic 2 - reaction quantities7
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Topic 2 - Periodic Table arrangement12
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topic 3 - atomic radius and electronegativity13
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topic 3 - first ionisation energy + trends10
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topic 3 - electron affinity & types of bonding10
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Topic 3 - physical properties7
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Topic 3 - chemical reactions period 2&321
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Topic 3 - reactions of metals with water & acids7
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Topic 3 - redox11
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Topic 3 - displacement reactions5
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Topic 1 - structure and bonding3
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Topic 1 - ionic bonding9
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Topic 1 - Covalent bonds6
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Topic 1 - metallic bonding6
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Topic 1 - inter molecular forces14
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first ionisation energy5
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First electron affinity4
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electronegativity3
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atomic radius2
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melting and boiling points5
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reaction in period 2 with oxygen8
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reaction of period 3 with oxygen8
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trends in properties of oxides4
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Reaction of metal with oxygen6
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Reactions of metals with water4
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reaction of metals with dilute acids6
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Describing and explain the trends in metal reactivity2
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displacement reaction of metals (oil rig)4
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displacement reaction of halogens (oil rig)4
