Free Printable Badi Final Revision

1.

___________________ is the smallest particle of an element.

a)

Atom

b)

Proton

c)

Nucleus

d)

Theory

2.

Any matter is made up of ______________

a)

Atom

b)

Proton

c)

Nucleus

d)

Theory

3.

The model which represents the atom as an indivisible tiny sphere.

a)

The "Quantum Mechanical Model" of the atom

b)

The "Plum Pudding Model" of the atom

c)

Dalton’s atomic model.

d)

Rutherford’s atomic model.

4.

The model which represents the atom as an indivisible tiny sphere.

a)

The "Quantum Mechanical Model" of the atom

b)

The "Plum Pudding Model" of the atom

c)

Democritus model

d)

Rutherford’s atomic model.

5.

Electrons and protons ____________

a)

carry same electric charge

b)

carry opposite electric charge

c)

are neutral

d)

are uncharged

6.

Electrons are ____________

a)

positive

b)

negative

c)

neutral

7.

protons are ____________

a)

positively charged

b)

negative charged

c)

neutral

8.

Neutrons are ____________

a)

positively charged

b)

negative charged

c)

neutral

9.

This model was proposed by ___________, who said that atom has nucleus at center and its positively charged.

a)

Rutherford

b)

Bohr

c)

Democritus

d)

Einstein

10.

The planetary model for atom was done by which scientist ?

a)

Bohr

b)

Rutherford

c)

Mendeleev

d)

Shadwick

11.

Why scientists could not discover neutrons easily and took long time ?

a)

Because neutrons were invisible.

b)

Because neutrons have no charge

c)

Because neutrons have small mass

d)

Because neutrons are smaller than electrons

12.

(Use the periodic table) The atomic number of carbon is (a)

13.

(Use the periodic table) The atomic mass of carbon is (a)

14.

Which of the following group of numbers represents an electrically neutral atom. (P → proton, n→ neutron, e → electron)

a)

P = 7 n= 8 e=8

b)

P = 7 n= 7 e=8

c)

P = 17 n= 8 e=17

d)

P = 8 n= 8 e=7

15.

Which scientist discoverd neutron ?

a)

Gregor Mendel

b)

Dimitri Mendeleev

c)

James Chadwick

d)

Ernest Rutherford

16.

Mendeleev arranged elements according to ________

a)

atomic number

b)

atomic mass

c)

arrangement in periodic table

d)

amount present in nature

17.

The number of valence electron(s) is __________

a)

2

b)

3

c)

4

d)

5

18.

The number of energy levels is __________

a)

2

b)

3

c)

4

d)

5

19.

The Bond between any 2 nonmetals is covalent

a)

True

b)

False

20.

The Bond between Carbon and hydrogen is ionic bond.

a)

True

b)

False

21.

The Bond in water between Oxygen and Hydrogen is (a) .

Badi Final Revision

Total questions: 21

Worksheet time: 12mins

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