Fechar
Protons
Neutrons
Electrons
Nucleus
Groups/Families
Periods
Group 1
Noble Gases
Mendeleev
Atomic Mass
Decreases
Properties
Synthetic
Particle accelerator
order of elements.
(Metalliods, Non metals, Alkali, Alkali earth, transitions.)
Malleable
Ductile
Conductivity
Reactivity
