16
atomic number
QUESTION 5 Apply your skills
The diagram shows part of the Periodic Table. Use it to answer the questions that follow.
1
2 3
5
7 8
9
10
7
22 13 14 15
16
17 18
2
He
Se
9
5
B
4
6
C
7
N
8
O
Na Mg
11
12
9
10
FI Ne
19
20
14
16
22
24
13
Al
23
V
25
14
Si
26
15
P
16
S
17
27
18
K
Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
55
Ca Sc
28
27
CI Ar
29
28
31
51
48
30
45
52
32
31
56
32
35,5
59
33
40
34
59
35
63,5
36
65
70
73
75
79
80
84
5.1 Wile down the SYMBOL of a...
5.1.1 non-metal in Group 1
5.1.2 non-metal in Group 14
5.1.3 metal in Group 2
5.1.4 metal in Group 13
5.1.5 semi-metal in Group 14.
"52 Wrie down the NAME of the element...
5.2.1 with atomic number 5
5.2.2 with mass number 65
5.2.3 with atomic number 14
5.2.4 with mass number 14
5.2.5 in Group 17 with a mass number smaller than 20.
QUESTION 6 Apply your skills
Copy and complete the table. The first row has been done for you.
Information given by chemical formulae
Formula Symbols of elements in
substance
CuSO4 Cu, S, O
H₂O 2H2 + O2
К со
Names of elements in
substance
copper, sulfur, oxygen
Ratio in which elements
are bonded
1:1:4
Alyckasery joyage
136 21 9
Al2O
12:5
Aluminium
oxide
= 101.969
Potassium
Carbon
20cons. 01/02
I atom
3 atoms
Oxygen