Chemistry, 09.10.2019 20:30 robert7248

What is the estimated effective nuclear charge, z eff, experienced by an electron in a 3p orbital of a chlorine atom?

Answers: 2

Show answers

Answers

Answer from: yungkxng57

The estimated effective nuclear charge experienced by a 3 p electron of chlorine is $\boxed{{\text{6}}{\text{.1}}}$ .

Further Explanation:

Effective Nuclear Charge:

It is the charge experienced by the outermost valence electrons of any many-electron atom. This is done by considering the number of shielding electrons that are present around the nucleus.

Slater’s Rule:

It is used to evaluate the effective nuclear charge experienced by an electron in the many-electron atom. According to this rule, the actual nuclear charge experienced by an electron is less than the actual nuclear charge due to screening by the other electrons present in the atom.

The electronic configuration is the distribution of electrons of an atom in the atomic orbitals.

The effective nuclear charge is calculated as follows:

${Z_{{\text{eff}}}}=Z-s$ …… (1)

Here,

Z is the actual nuclear charge.

S is the screening constant.

Rules for determining the screening constant for an electron are as follows:

1. The electronic configuration of the atom is written and is arranged in groups as follows,

$\left({1s}\right)\left({2s,2p}\right)\left({3s,3p}\right)\left({3d}\right)\left({4s,4p}\right)\left({4d}\right)\left({4f}\right)\left({5s,5p}\right)....$

2. Identify the group in which the considered electron is present. Ignore the electrons present in (n+1) or higher group as there is no contribution of these electrons in the screening of that electron. The screening constant for each group is given as follows:

(a) The screening due to another electron present in the same group is 0.35. Except for the screening due to other electron is 0.30.

(b) If the considered electron is present in (ns, np) group then the screening due to the electrons present in (n-1) group is 0.85 and the screening due to the electrons present in (n-2) or less group is 1.00.

(c) If the considered electron is present in (nd) or (nf) group then the screening due to the electrons present in the same (n-1) or less group is 1.00.

3. The sum of the screening constant from all the electrons is calculated.

The atomic number of chlorine is 17. So its electronic configuration is $\left({1{s^2}}\right)\left({2{s^2}2{p^6}}\right)\left({3{s^2}3{p^5}}\right)$

The formula to calculate the screening constant for a 3p electron is as follows:

$s=\left[\begin{gathered}\left({0.35}\right)\left({{\text{number of electrons in same group}}}\right)\hfill\\+\left({0.85}\right)\left({{\text{number of electrons in }}\left({n-1}\right)}\right)\hfill\\+\left({1.00}\right)\left({{\text{number of electrons in }}\left({n-2}\right){\text{or less group}}}\right)\hfill\\\end{gathered}\right]$ …… (2)

Substitute 6 for the number of electrons in the same group, 8 for the number of electrons in (n-1) group and 2 for the number of electrons in (n-2) or less group in equation (2).

$\begin{aligned}s&=\left[{\left({0.35}\right)\left(6\right)+\left({0.85}\right)\left(8\right)+\left({1.00}\right)\left(2\right)}\right]\\&=\left[{2.1+6.8+2}\right]\\&=10.9\\\end{aligned}$

Substitute 17 for Z and 10.9 for s in equation (1) to calculate the effective nuclear charge for a 3p electron.

$\begin{aligned}{Z_{{\text{eff}}}}&=17-10.9\\&=6.1\\\end{aligned}$

So the estimated effective nuclear charge experienced by a 3 p electron of chlorine is 6.1.

Learn more:

1. Calculate the mass of 1 mole of viruses:

2. Determine the moles of water produced:

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Periodic properties of elements

Keywords: Slater’s rule, 3p electron, effective nuclear charge, chlorine, electronic configuration, 17, atomic number, 7.

Answer from: Quest

Claim of polic

Answer from: Quest

passed in september 1935, these laws are known as nuremberg laws. they forbid jews from marrying but not directly forced them to divorce aryans. what is most noticeable is the fact that the jews were defranchised, meaning by this that they were not expected to have any civil rights, including the right to vote. the right answer is deprived of the right to vote.

Another question on Chemistry

Chemistry, 22.06.2019 02:50

The conventional equilibrium constant expression (kc) for the system below is: 2icl(s) ⇄ i2(s) + cl2(g) [cl2] ([i2] + [cl2])/2[icl] [i2][cl2]/[icl]2 none of the listed answers are correct [i2][cl2]/2[icl]

Answers: 2

Answer

Chemistry, 23.06.2019 00:00

What is the empirical formula of a compound that is 50.7% antimony and 49.3% selenium ?

Answers: 2

Answer

Chemistry, 23.06.2019 02:40

Calculate the standard enthalpy of formation of liquid methanol, ch3oh(l), using the following information: c(graphite) + o2 latex: \longrightarrow ⟶ co2(g) latex: \delta δ h° = –393.5 kj/mol h2(g) + o2 latex: \longrightarrow ⟶ h2o(l) latex: \delta δ h° = –285.8 kj/mol ch3oh(l) + o2(g) latex: \longrightarrow ⟶ co2(g) + 2h2o(l) latex: \delta δ h° = –726.4 kj/mol

Answers: 3

Answer

Chemistry, 23.06.2019 05:00

Match each term to its description. match term definition excess reactant a) reactant that can produce a lesser amount of the product limiting reactant b) amount of product predicted to be produced by the given reactants theoretical yield c) reactant that can produce more of the product

Answers: 3

Answer

You know the right answer?

What is the estimated effective nuclear charge, z eff, experienced by an electron in a 3p orbital of...

Questions