batoulmaki54 batoulmaki54
  • 07-11-2019
  • Chemistry
contestada

what is the atmoic mass of the unknown element located in between mo and ru

Respuesta :

Neetoo
Neetoo Neetoo
  • 20-11-2019

Answer:

98.9062 amu

Explanation:

The element between molybdenum and ruthenium is technetium.

Its atomic is 98.9062 amu.

Its atomic number is 44.

Its melting point is 2200 °C.

Its density is 11.5 g/cm³.

It is silver gray metal.

It is present in VII-B group.

It is d-block element.

It has seven valance electrons.

Its electronic configuration is:

Tc₄₄ = [Kr] 4d⁵ 5s²

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