Quick picks on atoms

Exercise and reference answers

Questions

1. Question

   The plum pudding model came from:

   Choices

   1. Thomson
   2. Rutherford
   3. Bohr

   Correct choice

   Thomson

2. Question

   Electrons circling a nucleus was the model of:

   Choices

   1. Thomson
   2. Rutherford
   3. Balmer

   Correct choice

   Rutherford

3. Question

   Bohr quantised which quantity:

   Choices

   1. Charge
   2. Mass
   3. Angular momentum

   Correct choice

   Angular momentum

4. Question

   The lowest energy state is the:

   Choices

   1. Ground state
   2. Excited state
   3. Free state

   Correct choice

   Ground state

5. Question

   Hydrogen ionisation energy is about:

   Choices

   1. 3.4 eV
   2. 13.6 eV
   3. 10.2 eV

   Correct choice

   13.6 eV

Instructions

Tap the correct answer before the round moves on.

Explanation