Spot the one that does not fit

Exercise and reference answers

Questions

1. Items

   1. Dense nucleus
   2. Charge spread out
   3. Seeds in a fruit
   4. Plum pudding

   Odd item

   Dense nucleus

2. Items

   1. Lyman
   2. Balmer
   3. Paschen
   4. Compton

   Odd item

   Compton

3. Items

   1. Stable orbits
   2. Quantised momentum
   3. Photon on a drop
   4. Spread out charge

   Odd item

   Spread out charge

4. Items

   1. Ground state
   2. Lowest energy
   3. Smallest orbit
   4. Free electron

   Odd item

   Free electron

Instructions

Tap the item that does not belong with the rest.

Explanation