Physical Science - Atomic Model

His theory provide a physical picture of how elements combine to form compounds and phenological reason for believing that atoms exist.

• Leucippus & Democritus

• John Dalton

• Ernest Rutherford

• Niels Bohr

His theory requires the electrons to move in orbits of fixed size and energy.

• John Dalton

• J. J. Thomson

• Ernest Rutherford

• Niels Bohr

Their theory tells that atoms consisted of solid spheres of different sizes for different types of atoms.

• Leucippus & Democritus

• John Dalton

• J. J. Thomson

• Ernest Rutherford

He theorized that this atomic nucleus was positively charged and surmised that the electrons orbited around it.

• John Dalton

• J. J. Thomson

• Ernest Rutherford

• Niels Bohr

His model indicated that there were pockets of negatively charges within the spheres of the atom. His Model also called "plum-pudding model".

• John Dalton

• J. J. Thomson

• Ernest Rutherford

• Niels Bohr

Who proposed this model?

• John Dalton

• Ernest Rutherford

• Niels Bohr

• Erwin Schrodinger

Who proposed this model?

• John Dalton

• Leucippus & Democritus

• J. J. Thomson

• Ernest Rutherford

In the Modern Atomic Theory, The proton is made up of two quarks, each of which has a positive charge 2/3 that of the electron. If the proton found in atoms is 18, how electron does the atom has?

• 3

• 4

• 6

• 9

If the electrons found in the atom are 5, then how many neutron are there?

• 5

• 10

• 15

• 20

If the neutrons present in the atom are 2, how many protons are there?

• 1

• 2

• 3

• 4