That column contains the Noble Gases (He, Ne, Ar, Kr, Xe, Rn).
N O F Ne He Cl Ar Kr Xe Rn
He<Ne<Ar<Kr<Xe<Rn
All noble gases - He, Ne, Ar, Kr, Xe - were used in lasers.
Kr
That column contains the Noble Gases (He, Ne, Ar, Kr, Xe, Rn).
No, they are in different periods.
These are the noble gases: He, Ne, Ar, Kr, Xe, Rn.
N O F Ne He Cl Ar Kr Xe Rn
The Noble gases He, Ne, Ar, Kr, Xe, Rn
Noble gasses, from group 18: He Ne Ar Kr Xe Rn
He<Ne<Ar<Kr<Xe<Rn
These are the noble gases, He, Ne, Ar, Kr, Xe, Rn
All noble gases - He, Ne, Ar, Kr, Xe - were used in lasers.
co2 ho2o2 ar,he,kr,ne+cloramphinamine
Kr
All the noble gases are in the atmosphere: He, Ne, Ar, Kr, Xe, Rn.