Which one does NOT belong?

Exercise and reference answers

Questions

1. Items

   1. Photon
   2. Proton
   3. Neutron
   4. Nucleus

   Reason

   A photon is a quantum of light, not a constituent of the nucleus.

   Odd item

   Photon

2. Items

   1. Mass defect
   2. Young's modulus
   3. Binding energy
   4. Radioactive decay

   Reason

   Young's modulus belongs to the mechanical properties of solids.

   Odd item

   Young's modulus

Instructions

Tap the item that does not belong with the rest.

Explanation