International Baccalaureate (IB) Chemistry Flashcards on Bonding Flashcards, created by Lizzy Crockatt on 04/02/2017.
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Created by Lizzy Crockatt
almost 8 years ago
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Created by Lizzy Crockatt
almost 8 years ago
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When are ions formed in ionic bonding?
What are valence electrons?
Are metals cations or anions?
Are non-metals cations or anions?
Why do elements in group 14 have a tendency not to form ions?
What are polyatomic ions?
Give some examples of polyatomic ions and their charge, with an example of a compound containing that ion.
What is ionization?
Explain ionic lattices
What is a coordinate number?
What is a formula unit?
What is lattice energy?
When is lattice energy the greatest? Why?
The physical properties of ionic compounds reflect their ___ structure?
Do ionic compounds have high or low mp/bp? Why?
Are ionic compounds solid at room temperature?
What is volatility?
What is solubility?
How is solubility determined?
Are water molecules polar or non-polar? Why?
When does a water molecule become hydrated?
What is solubility based on?
When do ionic compounds conduct electricity?
A general expression to describe the notion of solubility trends?
What does the ability of a compound to conduct electricity depend on?
Are ionic compounds brittle or nah? Give an example
Why are ionic compounds usually brittle?
What is a binary compound?
Describe the tendencies to lose or gain electrons referring to the periodic table.
On the pauline scale, what does a difference of genereally 1.8 or more mean?
How is a covalent bond formed?
What is a group of atoms held together by covalent called?
The formation of a covalent bond stabilizes the atoms so....
How are the atoms in a covalent bond held at a fixed distance apart?
What is the octet rule?
What is a lone electron pair?
How are multiple bonds formed?
How many electrons are shared in single, double and triple bonds?
What is a diatomic molecule? Give examples.
Every covalent bond is characterized by two values, What are they?
What is bond length?
What is Bond Strength?
Explain trend in atomic radius referring to periodic table and explain what this means.
As the bond length ___
The bond enthalpy ___
Why do multiple bonds have stronger forces of electrostatic attraction between the bonded nuclei?
name the two types of bonds which double bonds are made up of.
___ bonds, ___ bonds, ___ bonds, respectively
increase in length and decrease in strength
Polar bonds result from __________
Why can the sharing of electrons be unequal? Explain in detail.
What is a dipole?
More electronegative= slightly___
Less electronegative= slightly___
Describe electronegativity trends referring to th periodic table.
The greater the difference in electronegativities in a covalent bond, the ___ polar the bond.
What is a pure covalent bond?
How does the presence of a polar bond affect a molecule's properties?
Synonym for dot and cross diagram?
Many, though not all, ionic solids dissolve in water. This property depends on whether......
Explain how ions become hydrated
(Hint: refer to polarity and water ions)
Why is the solubility of ionic substances in solvents, such as hexane and propanone, very limited?
Explain the electrolytic conductivity of sodium chloride in detail and what this means etc..
The ability of a compound to conduct electricity depends on what?
Explain the brittleness of ionic crystals
Give an overview of the general properties of ionic compounds. (Give explanations)
