Question

which f-block element is found is more abundance than silver on earth's crust ?​

Answer 1

Answer:-

Thulium

Explanation:-

Lanthanides (elements 57–71) are fairly abundant in the earth's crust, despite their historic characterization as rare earth elements. Thulium, the rarest naturally occurring lanthanoid, is more common in the earth's crust than silver (4.5 × 10−5% versus 0.79 × 10−5% by mass).