What is the atomic number of an atom? Question 3 options:

the number protons and neutrons

the number of neutrons

the number of electrons and neutrons

the number of protons

The composition of the atom changes … details depend on how the numbers are changed. Like if you add an extra proton by throwing it at the atom at very high speed, you can destroy the atom and get a slew of new particles. This is what happens in the LHC.

The step a mother is most likely motivated by is their child!