Answer:
The rate is a mathematical relationship obtained by comparing reaction rate with reactant concentrations.
C—stems and leaves growing upward?
If we have a neutral atom, then it has the same number protons and neutrons.
The number protons and neutrons for neutral atom shows atomic number.
"A neutral atom has an atomic number of 20" means that atom has 20 protons (that give charge "+ 20" ) and 20 electrons (that give charge "-20").
Answer is 20 electrons.