3. Bonding, Structures and Properties Flashcards Preview

Nat 5 Chemistry - Unit 1 > 3. Bonding, Structures and Properties > Flashcards

Flashcards in 3. Bonding, Structures and Properties Deck (9)
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1
Q

What type of atom are molecules made out of?

A

Non-metal atoms

2
Q

What are atoms held together by in molecules?

A

Covalent bonds

3
Q

What are covalent bonds?

A

Bonds between atoms which share electrons

4
Q

What are diatomic molecules?

A

Molecules which contain only two atoms

5
Q

What are the diatomic elements?

A
Iodine
Hydrogen
Nitrogen
Bromine
Oxygen
Chlorine
Fluorine

(I Have No BRight Or CLever Friends)

6
Q

What are the molecule shapes?

A

N
H H H = Pyramidal (Ammonia)

 H
 C             = Tetrahedral (Methane) H   H   H

 O    H    H     = Bent / V-Shaped (Water)

H F = Linear (Hydrogen Fluoride)

7
Q

What properties does a covalent molecule have?

E.g. Water

A

Low melting/ boiling points

Insoluble

Does not conduct electricity

8
Q

What properties does a covalent network have?

E.g. Diamond

A

Very high melting/ boiling point

Insoluble

Does not conduct

9
Q

What properties does an ionic lattice have?

E.g. Salt

A

High melting/ boiling point

Soluble

Conducts as liquid