Question

Which is the element with atomic no. 70? Write about it.

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Answer 1

Terbium is a chemical element with symbol Tb and atomic number 65. It is a silvery-white, rare earth metal that is malleable, ductile, and soft enough to be cut with a knife. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas.

Answer 2

hello friend
the element with atomic number 70 is YB ie Ytterbium. It belongs to Lanthanoids family ( 4f¹-¹⁴ 5d0-1 6s²)
It's electronic configuration.is 4f¹⁴ 5d0 6s² ......
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