Path
Lesson 5 of 7
Established science
Element identity
Atomic number is destiny
Element identity is a single number: the atomic number Z, equal to the proton count. The periodic table is ordered by Z.
O
Oxygen
- Atomic no.
- 8
- Neutrons
- 8
- Electrons
- 8
Protons (Z)
8
What you breathe. Typically two bonds; water is H–O–H.
Check