Structure of Atom

What is the formula for finding the number of electrons present in the shell ?

• 2n

• None of the above

What is the electronic configuration of Sodium ?

• 2,8,8

• 2,8,6

• 2,8,1

• 2,3

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

Which among the following is present inside the nucleus of an atom ?

• Protons

• Electrons

• Neutrons

• All of the above

Who performed the famous 'gold foil experiment' ?

• Dalton

• Thomson

• Rutherford

• Bohr

The presence of anode rays inside the discharge tube was shown by ?

• J.J. Thomson

• Goldstein

• Chadwick

• Newton

J.J. Thomson proposed an atom model popularly known as

• CAKE MODEL

• PLUM PUDDING MODEL

• SANDWICH MODEL

• BREAD AND BUTTER MODEL

An atom having atomic mass number 13 has 7 neutrons. What is the atomic number of the atom?

• 13

• 7

• 6

• 12

Which statement best describes an electron?

• Smaller mass than a proton and a negative charge
• Smaller mass than a proton and a positive charge
• Greater mass than a proton and a negative charge
• Greater mass than a proton and a positive charge

What is at the center of every atom?

• An electron
• A compound
• A molecule
• A nucleus