Thai Sikh International School
E-Learning Programme – Online
Assignment – dd/mm/yyyy
Name
: Subject : Chemistry
Year : 9A/B Schedule
No. :
Chapter 3 Bonding
1.
Draw neat diagram of the
following substances:
Graphite Diamond Silicon Oxide Sodium
Chloride
2.
The numbers of protons,
electrons and neutrons in particles a, b, c and d are given below
|
|
Protons
|
Electrons
|
neutrons
|
|
A
|
9
|
9
|
10
|
|
B
|
9
|
10
|
10
|
|
C
|
12
|
12
|
12
|
|
D
|
12
|
10
|
12
|
Which one of the following
pairs of particles will combine with each other to give an ionic solid?
A a and b B a and d C b and c D b and d E c and d
3.
Elements X, Y and Z have atomic
numbers 9, 10 and 11 respectively. Which statement below is correct
A Z is a noble gas.
B Y exists as diatomic molecules Y2.
C X and Z do not combine to form a compound.
D X and Z combine to form an ionic compound of formula XZ2.
E X and Z combine to form an ionic compound of formula XZ.
4.
An element X has electron
configuration 2, 4. The simplest compound formed when X combines with chlorine
is most likely to be
A an ionic solid.
B a low melting point compound.
C a
gas that dissolves in water to form a solution that conducts an electric an
electric current.
D a
good electrical conductor when molten.
E an
inflammable liquid.
5. Giant
molecular solids
A consists of a network of atoms
interlocked by ionic bonds.
B generally
have low melting points.
C generally
contain one type of atom only.
D generally
are very stable, high melting point compounds.
E are
all good conductors of electricity.
6. Bring out
the difference between ionic compounds and covalent compounds.
...................................
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