Bonding Flashcards

1
Q

Ionic compounds are always formed from …..

A

Metal and a non metal

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2
Q

What overall are metal ions charge ?

A

Positive

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3
Q

What is the general non metal ion charge

A

Negative

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4
Q
What is
O
I
L
R
I
G
A
Oxidation
Is
Loss
Reduction
Is
Gain
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5
Q

What are :
Hydrogen ions
Lithium ions
Sodium ions

A

H+
Li+
Na+

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6
Q

Potassium ion
Chloride ions
Sulphide ion

A

K+
Cl-
S2-

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7
Q

Carbonate ion

A

CO(3) 2-

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8
Q

Sulfate ion

A

SO(4)2-

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9
Q

Nitrate ion

A

NO(3)-

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10
Q

Hydroxide

A

OH-

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11
Q

explain dot and cross diagrams

A

Sorry no pictures ?? go look it up in your book you whorreee

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12
Q

What is ionic bonding?

A

A strong electrostatic attraction between oppositely charged ions

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13
Q

Characteristics of ionic compounds ?

A
  • high boiling point and melting point as strong electrostatic forces
  • conductive in solutions
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14
Q

What is covalent bonding ?

A

A shared pair of electrons between two non metal atoms . They achieve a full outer shell by sharing the electrons. They are attracted to the others nuclei

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15
Q

Set definition of covalent bonding

A

A strong attraction between the bonding pair of electrons and the nuclei involved in the atoms of the bond

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16
Q

Dot and cross diagrams in covalent bonds

A

Look it up biatch i aint your dictionary

17
Q

What are the two categories that substances with covalent bonds fall into ?

A

1) giant covalent

2) simple molecules

18
Q

Why do substances with simple molecular structures have low melting points ?

A

Strong covalent bonds however weak intermolecular forces

19
Q

Why dont simple molecular structures conduct ?

A

No free flowing electrons or ions

20
Q

What are giant covalent lattices ?

A

Structures in which all atoms are connected by covalent bonds

21
Q

Examples of giant covalent lattices

A
  • diamonds

- graphite

22
Q

Characteristics of giant covalent lattices

A
  • very high boiling points

- sometimes conduct … Graphite

23
Q

What is the structure of a metal

A

A giant structure of positive ions surrounded by a sea of delocalised electrons

24
Q

Characteristics of metals ?

A

Conductive due to delocalised electrons
Layers of ions can slide so they are malleable and ductile
Butttt strong bonds mean they dont melt easily

25
Q

Why do ions form ?

A

Atoms are most stable with full shells

26
Q

What are cations positive or negative

A

Positive