Berkelium has the electronegativity 1,3 in the L. Pauling scale; terbium has an electronegativity of 1,1.
Berkelium is more reactive than terbium.
You think probable to ytterbium, terbium and erbium.
Terbium has 65 electrons
berkelium is synthetic
berkelium is american
Berkelium is extremely rare, radioactive and unstable; berkelium is not for sale.
Green trichromatic
Terbium is flammable and burns with a yellowish flame.
The atomic mass of terbium is 158.92
The symbol for the element Terbium is Tb
Berkelium has the valences 3+ and 4+.
The atomic weight of terbium is 158.93 amu.
Terbium is in the period 6 and is a member of lanthanoids family.