Key Area 3: Bonding and Properties

Question 1

Which is the most stable group?

Answer 1

Group 8 the noble gases

Question 2

Chemical stability is achieved by?

Answer 2

Having a full outer shell

Question 3

Three types of bonding?

Answer 3

Covalent (non-metal)
Ionic (metal + non-metal)
Metallic (metal)

Question 3

Hydrogen and what are covalently bonded?

Answer 3

Non-metals in group 4,5,6,7

Question 3

Covalent bonds

Answer 3

when positive nuclei from two atoms are held together by their common attraction for the shared pair of electrons

Question 3

Molecular structure

Answer 3

H - H O=O etc.

Question 3

Molecular formula

Answer 3

H2 O2 for diatomics

Question 4

2 types of covalent structures

Answer 4

Covalent molecular
Covalent network

Question 5

Polytomic molecules

Answer 5

Phosphorus P4
Sulfur S8

Question 6

Hydrogen chloride

Answer 6

HCl, H - Cl, H - Cl, Linear

Question 7

Water

Answer 7

H20, angular

Question 8

Ammonia

Answer 8

NH3, Trigonal pyramidal

Question 9

Methane

Answer 9

CH4 Tetrahedral

Question 10

Covalent networks only appear in?

Answer 10

Solid states

Question 11

Example of covalent network element?

Answer 11

Diamond

Question 12

Properties of Diamond

Answer 12

Four unpaired electrons in outer shell
Very hard
Cannot conduct no free elctrons

Question 13

Properties of Graphite

Answer 13

Only uses three of four electrons in outer shell
Soft slippery
Graphite can conduct bc theres a free electron

Question 14

Example of covalent network compoud

Answer 14

Silicon dioxide

Question 15

The structure is a network when its boiling point is?

Answer 15

High

Question 16

Atoms that lose electrons have?

Answer 16

More protons than electrons, have a positive charge

POSITIVE IONS

Question 17

Atoms that gain electrons have?

Answer 17

More electrons than protons, have a negative charge

NEGATIVE IONS

Question 18

Metal to have a full outer shell?

Answer 18

lose electrons

Question 19

Non-metals to have a full outer shell?

Answer 19

gain electrons

Question 20

Positive ions examples:

Answer 20

+ at top right

Litium atom = 2,1
Lithium ion = Li+

Magnesium ion = 2,8,2
Magnesium ion = Mg2+

(name stays the same)

Question 21

Negative ion examples:

Answer 21

Chlorine atom = 2,8,7
Chloride ion = Cl-

Oxygen atom = 2,6
Oxide ion = O-2

(name adds an -ide to the end)

Question 22

Metal atoms become?

Answer 22

positive

Question 23

Non-metal atoms become?

Answer 23

negative

Question 24

2-
SO
3

what does the three represent?

Answer 24

3 oxygen atoms present

Question 25

2-
SO
3

What does the 2- represent?

Answer 25

The charge

Question 26

Ionic bonds form?

Answer 26

Ionic lattice

Question 27

Two types of giant structures?

Answer 27

Covalent network
Ionic lattice

Question 28

Third compound structure?

Answer 28

Covalent molecular

Question 29

If conducts as solid?

Answer 29

Metal

Question 30

If low melting and high boiling point?

Answer 30

Covalent molecular

Question 31

Ions not free to move in solid, conducts in liquid?

Answer 31

Ionic substance

Question 32

High but never conducts?

Answer 32

Covalent network

Question 33

Metal + non-metal =

Answer 33

Ionic

Question 34

Non-metal + non-metal =

Answer 34

Covalent

Question 35

If given non-metal + metal that is liquid at room temp?

Answer 35

Some sort of covalent bonding

Question 36

Standard Solution

Answer 36

Is one whose concentration is known accuratley