Chemistry bonding flashcards

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  • Created by: James
  • Created on: 22-01-14 21:12
What happens in a dative covalent bond?
The shared pair of electrons come from only one of the bonding atoms.
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Name the three main factors that affect the strength of a metallic bond.
1. Number of protons/Nuclear charge 2. Number of delocalised electrons 3. Size of the ion
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Name the four main types of crystal structure.
Metallic, Ionic, Simple molecular and Macromolecular.
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What is the definition of Electronegativity?
Electronegativity is the relative tendency of an atom in a covalent bond in a molecule to attract electrons in a covalent bond to itself.
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By how much do lone pairs of electrons repel the atoms in molecules?
2.5 degrees
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Where do Van der Waal's forces occur?ple
They occur between all simple covalent molecules and the separate atoms in noble gases.
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Which of these bonds is the strongest: Dipole-Dipole, Van der Waal's, Hydrogen.
Hydrogen bonding
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With which three elements does Hydrogen bonding occur?
Nitrogen, Oxygen and Flourine.
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How do you display the dipoles in a molecule on a diagram?
δ + δ – (Delta positive/negative)
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How would you describe the shape of a water molecule?
Bent
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What is the definition of a metallic bond?
A metallic bond is the electrostatic force of attraction between the positive metal ions and the delocalised electrons
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What is the most electronegative element?
Flourine
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Other cards in this set

Card 2

Front

Name the three main factors that affect the strength of a metallic bond.

Back

1. Number of protons/Nuclear charge 2. Number of delocalised electrons 3. Size of the ion

Card 3

Front

Name the four main types of crystal structure.

Back

Preview of the front of card 3

Card 4

Front

What is the definition of Electronegativity?

Back

Preview of the front of card 4

Card 5

Front

By how much do lone pairs of electrons repel the atoms in molecules?

Back

Preview of the front of card 5
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