Question

Use the periodic table to determine the electron configuration for dysprosium (Dy) and americium (Am) in noble-gas notation

Answer 1

Dy: [Xe]6s24f10

Am: [Rn]7s25f 7 :)

Answer 2

Dysprosium [Dy]=
`[Xe]4f^(10)6s^2`

Americium [Am]=
`[Rn]5f^77s^2`

Dysprosium is a chemical element with symbol Dy and atomic number of 66. It is a rare earth metal and as it contains partially filled f sub shells, it belongs to f block. Xe is the nearest noble gas and has atomic number of 54.

Americium is a chemical element with symbol Am and atomic number of 95. It is a rare earth metal and as it contains half filled f sub shells, it belongs to f block. Radon is the nearest noble gas and has atomic number of 86.