Question

What is lantanoids ????????

Answer 1

lanthanoid series of chemical elements comprises the fifteen metallic chemical element with atomic numbers 57 through 71, from lanthanum through lutetium. These fifteen lanthanide elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth element.

Answer 2

Hi friend
lantanoids are the series of 15 metallic materials.
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