2: The Periodic Table And Bonding Flashcards

1
Q

What are positive ions called?

A

Cations.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What holds ionic compounds together?

A

Electrostatic attraction between ions.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What structure do ionic compounds form?

A

Giant ionic lattice.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Why don’t ionic compounds conduct electricity when solid?

A

Ions cannot move.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What do covalent bonds involve?

A

Sharing pairs of electrons between atoms.
The electrons are attracted to the positively charged nuclei

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How many bonds do hydrogen chloride (HCl) form?

A

One covalent bond.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What bond is present in O₂?

A

A double covalent bond.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How many covalent bonds does methane (CH₄) have?

A

Four covalent bonds.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is a property of simple molecular substances?

A

Low melting and boiling points.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Why does diamond have a high melting point?

A

It has strong covalent bonds.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What allows metals to conduct electricity?

A

Delocalised electrons.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Why are metals malleable?

A

Layers of ions can slide over each other.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly