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Worksheets

atoms

Total questions: 58

Worksheet time: 33mins

Name
Class
Date
1.

Where is the element's atomic MASS located?

a)

at the top

b)

at the bottom

c)

the top number + the bottom number

d)

the number of protons + the number of neutrons

2.

What are the 3 subatomic particles of an atom?

a)

carbon atom, proton, electron

b)

quarks, neutrons, protons

c)

nucleus, protons, electrons

d)

protons, neutrons, electrons

3.

Generally, the number of neutrons ____ the number of protons in an atom.

a)

=

b)

<

c)

>

4.

Which subatomic particle has a negative charge?

a)

proton

b)

neutron

c)

electron

5.

Which subatomic particle has a positive charge?

a)

proton

b)

neutron

c)

electron

6.

Which subatomic particle has a neutral or no charge?

a)

proton

b)

neutron

c)

electron

7.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
8.

Where is the element's atomic NUMBER located?

a)

the top

b)

the bottom

c)

the top + the bottom

d)

the number of protons + the number of neutrons

9.

Where is the element's atomic MASS located?

a)

at the top

b)

at the bottom

c)

the top number + the bottom number

d)

the number of protons + the number of neutrons

10.

What are the 3 subatomic particles of an atom?

a)

carbon atom, proton, electron

b)

quarks, neutrons, protons

c)

nucleus, protons, electrons

d)

protons, neutrons, electrons

11.

Generally, the number of neutrons ____ the number of protons in an atom.

a)

=

b)

<

c)

>

12.

Which subatomic particle has a negative charge?

a)

proton

b)

neutron

c)

electron

13.

Which subatomic particle has a positive charge?

a)

proton

b)

neutron

c)

electron

14.

Which subatomic particle has a neutral or no charge?

a)

proton

b)

neutron

c)

electron

15.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
16.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
17.
all matter is made of what 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
18.
an atom with atomic number 6 would have how many protons 
a)
6
b)
12
c)
3
d)
cannot be determined 
19.
The atomic number of an elements is the total number of which particles in the nucleus?
a)
neutrons
b)
protons
c)
electrons
d)
protons and electrons
20.
a)
2
b)
8
c)
3
d)
13
21.
a)
2
b)
6
c)
10
d)
16
22.
What subatomic particle(s) would be found orbiting the nucleus?
a)
Neutrons only
b)
Electrons only
c)
Protons and Neutrons
d)
Protons and Electrons
23.

Generally, the number of neutrons ____ the number of protons in an atom.

a)

=

b)

<

c)

>

24.

Which subatomic particles contribute the least to the mass of an atom?

a)

Neutrons

b)

Protons

c)

Electrons

25.

If K, L, M N, shells of an atom are full. The total number of electrons in that atom are :

a)

60

b)

26

c)

42

d)

36

26.

What is the mass number of an atom which contains 28 protons, 28 electrons, and 34 neutrons?

a)

28

b)

56

c)

62

d)

90

27.

The isotopes of a same element have:

a)

same mass number.

b)

same atomic number.

c)

different mass number.

d)

both b & c.

28.

The first model of an atom was given by

a)

N. Bohr

b)

E. Goldstein

c)

Rutherford

d)

J.J. Thomson

29.

Which of the following statement is always correct?

a)

An atom has equal number of electrons and protons.

b)

An atom has equal number of electrons and neutrons.

c)

An atom has equal number of protons and neutrons.

d)

An atom has equal number of electrons, protons and neutrons.

30.

An atom has a mass number of 23 and atomic number 11. The number of protons is _________.

a)

11

b)

12

c)

23

d)

44

31.

Which of the following in Fig do not represent Bohr’s model of an atom correctly?

a)

(i) and (ii)

b)

(ii) and (iii)

c)

(ii) and (iv)

d)

(i) and (iv)

32.

The isotopes of a same element have:

a)

(A) same mass number.

b)

(B) same atomic number.

c)

(C) different mass number.

d)

both b & c.

33.

The highest Cricket ground in the world is located in India. Where is it located?

a)

Chail, Himachal Pradesh

b)

Dharamshala, Himachal Pradesh

c)

Nainital, Uttarakhand

d)

Dehradun, Uttarakhand

34.

First University established in India?

a)

University of Calcutta

b)

Delhi University

c)

Banaras Hindu University

d)

Madras University

35.

What is this monument known as and where is it located?

a)

Bibi ka Maqbara, Aurangabad

b)

Taj Mahal, Agra

c)

Jama Masjid, Delhi

36.

Science Day in Switzerland is dedicated to an Indian. Who is this great personality?

a)

C. V. Raman

b)

Vikram Sarabhai

c)

Homi Bhabha

d)

A. P. J. Abdul Kalam

37.

This Indian president took only 50% of his salary, claiming he did not require more than that. Identify this personality.

a)

V. V. Giri

b)

Sarvepalli Radhakrishnan

c)

Dr. Rajendra Prasad

d)

Shankar Dayal Sharma

38.

Which of the following correctly represent the electronic distribution in the Mg atom?

a)

3, 8, 1

b)

2, 8, 2

c)

1, 8, 3

d)

8, 2, 2

39.

Rutherford’s ‘alpha (α) particles scattering experiment’ resulted into discovery of

a)

Electron

b)

Proton

c)

Nucleus in the atom

d)

Atomic mass

40.

Which of the following statements about Rutherford’s model of atom are correct?

(i) considered the nucleus as positively charged

(ii) established that the α–particles are four times as heavy as a hydrogen atom

(iii) can be compared to solar system

(iv) was in agreement with Thomson’s model

a)

(i) and (iii)

b)

(ii) and (iii)

c)

(i) and (iv)

d)

only (i)

41.

An element has 3 valence electrons in its outermost 3rd shell, the name of element is

a)

B

b)

Al

c)

Ga

d)

In

42.

If K, L, M N, shells of an atom are full. The total number of electrons in that atom are :

a)

60

b)

26

c)

42

d)

36

43.

Which of the following are true for an element?

(i) Atomic number = number of protons + number of electrons

(ii) Mass number = number of protons + number of neutrons

(iii) Atomic mass = number of protons = number of neutrons

(iv) Atomic number = number of protons = number of electrons

a)

(i) and (ii)

b)

(i) and (iii)

c)

(ii) and (iii)

d)

(ii) and (iv)

44.

The ion of an element has 3 positive charges. Mass number of the atom is 27 and the number of neutrons is 14. What is the number of electrons in the ion?

a)

13

b)

10

c)

14

d)

16

45.

What is the maximum number of electrons that are allowed on the second orbital?

a)

9

b)

7

c)

8

d)

3

46.

What is the mass number of an atom which contains 28 protons, 28 electrons, and 34 neutrons?

a)

28

b)

56

c)

62

d)

90

47.

The isotopes of a same element have:

a)

same mass number.

b)

same atomic number.

c)

different mass number.

d)

both b & c.

48.

The first model of an atom was given by

a)

N. Bohr

b)

E. Goldstein

c)

Rutherford

d)

J.J. Thomson

49.

Which of the following statement is always correct?

a)

An atom has equal number of electrons and protons.

b)

An atom has equal number of electrons and neutrons.

c)

An atom has equal number of protons and neutrons.

d)

An atom has equal number of electrons, protons and neutrons.

50.

An atom has a mass number of 23 and atomic number 11. The number of protons is _________.

a)

11

b)

12

c)

23

d)

44

51.

Which of the following in Fig do not represent Bohr’s model of an atom correctly?

a)

(i) and (ii)

b)

(ii) and (iii)

c)

(ii) and (iv)

d)

(i) and (iv)

52.

The isotopes of a same element have:

a)

(A) same mass number.

b)

(B) same atomic number.

c)

(C) different mass number.

d)

both b & c.

53.

The highest Cricket ground in the world is located in India. Where is it located?

a)

Chail, Himachal Pradesh

b)

Dharamshala, Himachal Pradesh

c)

Nainital, Uttarakhand

d)

Dehradun, Uttarakhand

54.

First University established in India?

a)

University of Calcutta

b)

Delhi University

c)

Banaras Hindu University

d)

Madras University

55.

What is this monument known as and where is it located?

a)

Bibi ka Maqbara, Aurangabad

b)

Taj Mahal, Agra

c)

Jama Masjid, Delhi

56.

Science Day in Switzerland is dedicated to an Indian. Who is this great personality?

a)

C. V. Raman

b)

Vikram Sarabhai

c)

Homi Bhabha

d)

A. P. J. Abdul Kalam

57.

This Indian president took only 50% of his salary, claiming he did not require more than that. Identify this personality.

a)

V. V. Giri

b)

Sarvepalli Radhakrishnan

c)

Dr. Rajendra Prasad

d)

Shankar Dayal Sharma

58.

what does atom stand for?

a)

matter

b)

asher is dog

c)

josiah slays

d)

atomic theory of matter