What is the valency of zinc?

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Zinc is a transition metal and is present in the d block in the periodic table. 30 is the atomic number of zinc. Hence, the electronic configuration on zinc is $1s^22s^22p^63s^23p^63d^{10}4s^2 $.

The valence shell of the element i.e. 4s contains 2 valence electrons.
This means that zinc can lose 2 electrons present in the 4s shell to transform into the Zn²⁺ cation.

Hence, the valency of zinc is 2.

Zinc

Valency

The valency of an element refers to the number of atoms of an element that combine with atoms of other elements in order to form a molecule. Valency helps to measure the combining power of an atom.

The stronger the bond between the atoms of an element, the higher is the valency.
Valency, in chemistry, is important as it helps us to understand how atoms are linked together to form molecules.

Each element in nature aspires to be an octet. Zinc has a total of 30 electrons, with 28 in the first 3 shells and two in the 4^th shell. So, it must either lose two electrons or gain six electrons in order to attain an octet.

As a result, Zinc has a valency of two.

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Relevant Topics
Atomic and Molecular Masses	Atomic Mass of Elements	Electronegativity Chart of Elements
Group 2 Elements	Structure of Atom	Valency of Carbon
Difference Between Element and Compound	Periodic Properties of Elements	F block elements

CBSE CLASS XII Related Questions

1.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

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2.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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3.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

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4.
Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

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5.
Give structures of A, B and C: Aniline $\xrightarrow{Br_2/H_2O}$ A $\xrightarrow{NaNO_2+HCl, 0-5^\circ C}$ B $\xrightarrow{H_3PO_2+H_2O}$ C

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6.
61 g benzoic acid (M = 122 g mol$^{-1}$) dissolved in 500 g benzene. Vapour pressure of pure benzene = 66 torr. Assume complete dimerisation. Calculate vapour pressure of solution.

View Solution

What is the valency of zinc?

Valency

CBSE CLASS XII Related Questions

1.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

2.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

3.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

4.
Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

5.
Give structures of A, B and C: Aniline $\xrightarrow{Br_2/H_2O}$ A $\xrightarrow{NaNO_2+HCl, 0-5^\circ C}$ B $\xrightarrow{H_3PO_2+H_2O}$ C

6.
61 g benzoic acid (M = 122 g mol$^{-1}$) dissolved in 500 g benzene. Vapour pressure of pure benzene = 66 torr. Assume complete dimerisation. Calculate vapour pressure of solution.

Comments

SUBSCRIBE TO OUR NEWS LETTER

What is the valency of zinc?

Valency

CBSE CLASS XII Related Questions

1.Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

2.Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

3.For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

4.Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

5.Give structures of A, B and C: Aniline $\xrightarrow{Br_2/H_2O}$ A $\xrightarrow{NaNO_2+HCl, 0-5^\circ C}$ B $\xrightarrow{H_3PO_2+H_2O}$ C

6.61 g benzoic acid (M = 122 g mol$^{-1}$) dissolved in 500 g benzene. Vapour pressure of pure benzene = 66 torr. Assume complete dimerisation. Calculate vapour pressure of solution.

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

2.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

3.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

4.
Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

5.
Give structures of A, B and C: Aniline $\xrightarrow{Br_2/H_2O}$ A $\xrightarrow{NaNO_2+HCl, 0-5^\circ C}$ B $\xrightarrow{H_3PO_2+H_2O}$ C

6.
61 g benzoic acid (M = 122 g mol$^{-1}$) dissolved in 500 g benzene. Vapour pressure of pure benzene = 66 torr. Assume complete dimerisation. Calculate vapour pressure of solution.