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- 1. Multiple Choice
What is the symbol for Mass Number , Atomic Number and element ?
Mass No. = Z
Atomic No. = X Element = A
Mass No. = X
Atomic No. = Z
Element = A
Mass No. = A
Atomic No. = Z
Element = X
Mass No. = A
Atomic No. = X
Element = Z
- 2. Multiple Choice
Formula for finding the No. of Neutrons =
Mass Number - Atomic Number
Mass Number + Atomic Number
Atomic Number - Mass Number
Mass Number - No. of Protons
- 3. Multiple Choice
What is the formula for finding the number of electrons present in the shell ?
2n
None of the above
- 4. Multiple Choice
What is the electronic configuration of Sodium ?
2,8,8
2,8,6
2,8,1
2,3
- 5. Multiple Choice
What is the electronic configuration and name of this atom in the image ?
Electronic Configuration = 2,4
Name = Carbon
Electronic Configuration = 2,8,8,1
Name = Potassium Atom
Electronic Configuration = 2,8,1
Name = Sodium Atom
Electronic Configuration = 2,8,8,2
Name = Calcium Atom
- 6. Multiple Choice
Which among the following is present inside the nucleus of an atom ?
Protons
Electrons
Neutrons
All of the above
- 7. Multiple Choice
Who performed the famous 'gold foil experiment' ?
Dalton
Thomson
Rutherford
Bohr
- 8. Multiple Choice
The presence of anode rays inside the discharge tube was shown by ?
J.J. Thomson
Goldstein
Chadwick
Newton
- 9. Multiple Choice
J.J. Thomson proposed an atom model popularly known as
CAKE MODEL
PLUM PUDDING MODEL
SANDWICH MODEL
BREAD AND BUTTER MODEL
- 10. Multiple Choice
An atom having atomic mass number 13 has 7 neutrons. What is the atomic number of the atom?
13
7
6
12
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