What is the shielding constant (S) experienced by a 3d electron in the bromine atom?

Step (1): Write the electronic configuration of Bromine in the appropriate form.

Br: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁵

Br: (1s²)(2s²,2p⁶)(3s²,3p⁶)(3d¹⁰)(4s²,4p⁵)

Step (2): Use the Slater Rule to calculate the shielding constant for the electron. And ignore the group of electron to the right of the 3d electrons, these electrons do not contribute to the shielding constant.

(S)_3d = (d electrons-1)x 0.35+ (remaining electrons)x1.00= 21.15

(S)_3d = (10-1)x 0.35+ (18)x1.00= 21.15

Solved Questions:

(2) A given compound AB whose electronegative difference is 1.9 . Atomic radius of A and B are 4 and 2 Angstroms the distance between A and B means dA-B is ?

(2) The C–C single bond length is 1.54 Angstroms and that of Cl–Cl is 1.98 Angstroms. If the electronegativity of Cl and C are 3.0 and 2.5 respectively, the C–Cl bond-length will be equal to ?

(3) Stevenson & Schromaker Equation: Determination covalent radius of Heterogeneous Molecules.

(4) How to calculate percentage (%) ionic character in covalent compounds?

(5) The electronegativity of F and H are 4.0 and 2.1 respectively. The percentage ionic character in H and F bond is.

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(5) What is atomic density ? give the periodicity of atomic density in periods and groups.

(6) What is atomic volume ? and what is periodicity of atomic volume in groups and periods ?

(7) Why there are 2, 8 and 8 elements in first, second and third periodic of periods table respectively ? Explain.

(8) In alkali metal group which is the strongest reducing agent in aqueous solution and why?

(9) The electron affinity of sulphur is greater than oxygen. Why?

(10) The first ionization energy of carbon atom is greater than that of boron atom, whereas reverse is true for the second ionization energy. Explain.

The electronegativity of F and H are 4.0 and 2.1 respectively. The percentage ionic character in H and F bond is.

The percentage ionic character in covalent compound arises due to the electronegative difference of bonding atoms. And percentage ionic character of covalent bond calculates by Henry and Smith equation;

Solved Questions:

(2) A given compound AB whose electronegative difference is 1.9 . Atomic radius of A and B are 4 and 2 Angstroms the distance between A and B means dA-B is ?

(2) The C–C single bond length is 1.54 Angstroms and that of Cl–Cl is 1.98 Angstroms. If the electronegativity of Cl and C are 3.0 and 2.5 respectively, the C–Cl bond-length will be equal to ?

(3) Stevenson & Schromaker Equation: Determination covalent radius of Heterogeneous Molecules.

(4) How to calculate percentage (%) ionic character in covalent compounds?

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(1) The electronegativities of B, Al, Ga are 2.0, 1.5, 1.6 respectively. The trend is not regular. Explain.

(2) Li2CO3 decomposes on heating but other alkali metal carbonates don’t. Explain.

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How to calculate percentage (%) ionic character in covalent compounds?

 Henry & Smith equation:

The percentage ionic character in covalent compound arises due to the electronegative difference of bonding atoms. And percentage ionic character of covalent bond calculates by Henry and Smith equation;

Solved Questions:

(2) A given compound AB whose electronegative difference is 1.9 . Atomic radius of A and B are 4 and 2 Angstroms the distance between A and B means dA-B is ?

(2) The C–C single bond length is 1.54 Angstroms and that of Cl–Cl is 1.98 Angstroms. If the electronegativity of Cl and C are 3.0 and 2.5 respectively, the C–Cl bond-length will be equal to ?

Related Questions:

(1) What are the Amphoteric metals ? gives Examples.

(2) Name of total metalloids present in periodic table ?

(3) Total numbers of elements which are liquid at normal temperature is ?

(4) What is Mendeleev's periodic table ? give important features and draw back of Mendeleev's table.

(5) What is atomic density ? give the periodicity of atomic density in periods and groups.

(6) What is atomic volume ? and what is periodicity of atomic volume in groups and periods ?

(7) Why there are 2, 8 and 8 elements in first, second and third periodic of periods table respectively ? Explain.

(8) In alkali metal group which is the strongest reducing agent in aqueous solution and why?

(9) The electron affinity of sulphur is greater than oxygen. Why?

(10) The first ionization energy of carbon atom is greater than that of boron atom, whereas reverse is true for the second ionization energy. Explain.