1s22s22p63823p64523d104p5s24d105p5< br /> What is the name of the element?

IODINE

Explanation:

 The sublevel notation of the element:

      1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁵

To find this element, we must add the powers of the each of the sublevels. This is the number of electrons in the orbital of the atom.

 2 + 2 + 6 + 2 + 6 + 2 + 10 + 6 + 2 + 10 + 5  = 53

  This give atom has 53 electrons and we can assume it to have an atomic number of 53.

The element is IODINE

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