Content knowledge <|:-)*\ Flashcards
(12 cards)
1
Q
How/why do ionic bonds form?
A
- electrostatic attraction - positive cation and negative anion attract
- transfer electrons
- achieve full valence shells - become stable
2
Q
How/why do covalent bonds form?
A
- achieve full valence shells - become stable
- share valence electrons
3
Q
How/why do metallic bonds form
A
- delocalise (release) their valence electrons to become stable
4
Q
What substance (ionic/metal/covalent) has
- high melting/boiling points
- high conductivity as liquid/aqueous
- no conductivity as solid
A
ionic
5
Q
What substance (ionic/metal/covalent) has
- low melting/boiling points
- does not conduct electricity in any state
A
covalent
6
Q
What is the conductivity of covalent substance as solid vs liquid
A
liquid - very low
solid - very low
7
Q
What substance (ionic/metal/covalent) has
- high melting/boiling points
- good conductors in all forms
A
metallic
8
Q
What is the conductivity of metallic substance as solid vs liquid
A
liquid - high
solid - high
9
Q
What is the conductivity of ionic substance as solid vs liquid
A
liquid - high
solid - very low
10
Q
How soluble are ionic substances
A
- high rate of solubility (use solubility rules)
11
Q
How soluble are covalent substances
A
- sometimes/mostly not - often not but sometimes can
12
Q
How soluble are metallic substances
A
- very few times
