Structure of atom MCQs

Which of the following result in the discovery of proton

• Cathode rays

• canal rays

• X rays

• alpha rays

Which of the following is the most penetrating.

• protons

• neutrons

• electrons

• alpha particles

The concept of orbit was used by

• J.J. Thomson

• Rutherford

• Bohr

• Plank

Which of the following consist of three subshells

• O shell

• N shell

• L shell

• M shell

Which radioisotope is used for the diagnosis of tumor in the body?

• Cobalt-60

• Iodine-131

• Strontium-90

• Phosphorous-30

When U-235 breaks up it produces

• electrons

• neutrons

• protons

• nothing

The p sub shell has

• One orbital

• two orbitals

• three orbirals

• four orbitals

Deutrium is used to make

• light water

• heavy water

• soft water

• hard water

The isotope C-12 is present in abundance

• 96.9%

• 98.9%

• 99.7%

• None of these

Who discovered the proton

• Goldstein

• J.J. Thomson

• Bohr

• Rutherford