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Introduction of Basic Chemistry

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Chemistry is the study of

a)

Matter

b)

Properties of matter

c)

Reactions of matter

d)

All the above

2.

Atomic number of magnesium [Mg] in the periodic table-------.

a)

11

b)

13

c)

14

d)

12

3.

In the nucleus of an atom--------is present

a)

Proton

b)

Neutron

c)

Electron

d)

Proton and neutron

4.

Electronic configuration of Aluminium ( Al ) is--------.

a)

[ 2, 8, 1 ]

b)

[ 2, 8, 3 ]

c)

[ 2, 8, 2 ]

d)

[ 2, 8, 4 ]

5.

The number of protons present in the nucleus of an atom determines the---------.

a)

Atomic number

b)

Mass number

c)

Valency

d)

None of the above

6.

The tendency of an atom to prefer to have 8 electrons in the valence shell is known as

a)

Octet

b)

Duplet

c)

Valency

d)

None of the above

7.

The valency of fluorine ( f ) atom is--------.

a)

3

b)

-1

c)

2

d)

4

8.

The atoms of the same element which contains the same number of protons but different number of neutrons is known as-----------.

a)

Isotope

b)

Isocore

c)

Isobar

d)

Isotone

9.

The principal quantum number is suggest for----------.

a)

Shape of orbital

b)

Orientation of orbital

c)

Energy level of orbital

d)

None of the above

10.

In Azimuthal quantum number S sublevel suggest that--------.

a)

Sharp

b)

Spherical

c)

Too complex

d)

Both option 1 and option 2