Question

What are elements 57 70 called?

Answer 1

Answer:

elements 57 70 are called Lanthanoid

• Lanthanoid, also called lanthanide, any of the series of 15 consecutive chemical elements in the periodic table from lanthanum to lutetium (atomic numbers 57–71).

Answer 2

Answer:

The lanthanides are a group of 15 chemically similar elements with atomic numbers 57 through 71, inclusive