A level Chemistry (2.2 Electrons, Bonding and Structure) Flashcards on Polarisation, created by Yinka F on 21/02/2018.
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Created by Yinka F
almost 7 years ago
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Close
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Created by Yinka F
almost 7 years ago
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What is electronegativity?
What is electronegativity measured on?
What determines whether a bond has more covalent or ionic character?
Ignoring the noble gases and hydrogen, describe the trend in electronegativity in the periodic table
TRUE OR FALSE:
The covalent bonds in diatomic gases are non-polar
Why are the covalent bonds in diatomic gases non-polar?
The bonds between carbon and hydrogen are essentially non-polar. Why?
What makes a covalent bond 'polar'?
Complete the sentences:
Polar molecules have an overall __________. The __________ of the molecule will decide whether or not it has an overall __________. If the polar bonds are arranged ________________ the dipoles cancel each other out and the molecule is _____-________ (e.g. CO₂)
TRUE OR FALSE:
Bonds between atoms are either purely ionic or purely covalent. There is no in-between
What can you use to predict the types of bond that will form between two elements?
If the difference in electronegativities is less than 0.4, generally what type of bond is present?
If the difference in electronegativities is between 0.4 and 2.0, generally what type of bond is present?
If the difference in electronegativities is more than 2.0, generally what type of bond is present?
