Question

find the Zeff of 1s electron in Os​

Answer 1

Answer:6.1

Explanation:

Z = 17

Z ∗ =Z−S

= 17 - [(0.35 × No. of other electrons in nth shell)] + (0.85 × No. of electrons in (n - 1)th shell) + (1.00 × total number of electrons in the inner shells)

=17−[(0.35×6)+(0.85×8)+(1×2)]

=17−10.9=6.1

Answer 2

$Zeff$ of 1s electron in Os​ is 6.1.

Explanation:

• $Zeff$ is the effective nuclear charge which is the net positive charge, that is attracting an electron in an atom.
• The energy of an orbital will depend on Zeff.
• In a many-electron atom, for a given value of n, the energy of an orbital increases with an increasing value of l
• Here Osmium is a chemical element with the symbol Os and atomic number 76.
• Z = 76
• Z ∗ =Z−S  Electrons per shell-2, 8, 18, 32, 14, 2
• = 17 - [(0.35 × No. of other electrons in nth shell)] + (0.85 × No. of electrons in (n - 1)th shell) + (1.00 × total number of electrons in the inner shells)
• =17−[(0.35×6)+(0.85×8)+(1×2)]
• =17−10.9=6.1

•  $Zeff$ is 6.1.