WorksheetsELEMENTS
Total questions: 4
Worksheet time: 2mins
Name
Class
Date
1.
Symbol of Copper
a)
C
b)
Co
c)
Cu
d)
Cr
2.
Symbol of Sodium
a)
So
b)
S
c)
Na
d)
NA
3.
The atom of an element has electronic con-figuration 2, 8, 7. To which of the following elements would it be chemically similar?
a)
(a) N(7)
b)
(b) P(15)
c)
(c) Na(11)
d)
(d) F (9)
4.
An element ‘A’ belongs to the third period and group 16 of the Periodic Table. Find out the valency of A.
a)
(a) Valency = 6
b)
(b) Valency = 2
c)
(c) Valency = 1
d)
(d) Valency = 3
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