WorksheetsElements & Compounds
Total questions: 10
Worksheet time: 13mins
Name
Class
Date
1.
Write the atomic number of Sodium
a)
13
b)
15
c)
12
d)
11
2.
Element with atomic number 8 is
a)
Carbon
b)
Nitrogen
c)
Oxygen
d)
Fluorine
3.
What is the atomic mass of Carbon?
a)
6
b)
10
c)
12
d)
16
4.
Calculate the molecular weight of
CaCl2a)
54
b)
111
c)
74
d)
91
5.
What is the molecular weight of
Mg3N2a)
100
b)
50
c)
86
d)
64
6.
Element with symbol Ca is (a)
7.
Element with Symbol K is (a)
8.
What is the element whose symbol is Na?
(a)
9.
Name the element whose atomic number is 16?
(a)
10.
Molecular weight of CaO is....
a)
48
b)
28
c)
56
d)
72
100 %
