1which of the following elements is only made in a laboratory
ferinium
neodymuium
cerium 
thorium
2 which of the following is an inner transiation metal
uranium
osmium(Os)
hafnium (Hf)
radium (Ra)
3 what are elements with atomic numbers greater than 92 called
radioactive
actnide
lanthanide
transuranium
4 which of the following best describes the element lanthanum
nonmetal
radioactive
inner transition metal
transuranium
5 which of the following is a metal from lanthanide series
Dy
Am
Md
Rf