The answer is rubidium -91 because it takes a shorter time of 58.4 seconds to become stable.
P is momentum f is force and m is mass
Answer:
N2O5
Explanation:
IUPAC ID: Dinitrogen pentoxide
Molar mass: 108.01 g/mol
Density: 1.64 g/cm³
About 450*C, a pressure of about 200atm and a catalyst or iron