Use pv=nrT
where p is the pressure,
v is the volume,
n is the number of mole (which can be equal to mass /mr),
T is the temperature in kelvin,
and r is (molar constant) = 8.31 (units)
(2) three fewer valence electrons is your answer.
The charge on Pb in Pb(SO3)2 is Lead (IV) Sulfite.
The process that releases energy which causes lightning is known as Glaciation
