(B) The electronic configuration $1s^2 2s^2 2p^6 3s^1$ indicates that the metal $M$ has $1$ valence electron in its outermost shell. Therefore,the val

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(B) The electronic configuration $1s^2 2s^2 2p^6 3s^1$ indicates that the metal $M$ has $1$ valence electron in its outermost shell. Therefore,the valency of the metal $M$ is $+1$. Oxygen typically forms an oxide ion with a valency of $-2$ $(O^{2-})$. By applying the criss-cross method for the valencies of $M^{+1}$ and $O^{-2}$,the chemical formula of the oxide is $M_2O$.

Class 11 Chemistry Classification of Elements and Periodicity in Properties Valency and oxidation state

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The electronic configuration of a metal $M$ is $1s^2 2s^2 2p^6 3s^1$. What will be the formula of its oxide?

A
$MO$
B
$M_2O$
C
$M_2O_3$
D
$MO_2$

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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Classification of Elements and Periodicity in Properties

Subtopic

Valency and oxidation state

The most common oxidation state of an element is $-2$. The number of electrons present in its outermost shell is

Easy

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In any period,the valency of an element with respect to oxygen:

Medium

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Identify the element which can have the highest oxidation number among the given options.

MediumAIIMS 1996

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Which of the following elements exhibits a constant valency?

Medium

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Number of elements from the following that $CANNOT$ form compounds with valencies which match with their respective group valencies is
$B, C, N, S, O, F, P, Al, Si$

MediumJEE MAIN 2024

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The electronic configuration of a metal $M$ is $1s^2 2s^2 2p^6 3s^1$. What will be the formula of its oxide?

Similar Questions

The most common oxidation state of an element is $-2$. The number of electrons present in its outermost shell is

In any period,the valency of an element with respect to oxygen:

Identify the element which can have the highest oxidation number among the given options.

Which of the following elements exhibits a constant valency?

Number of elements from the following that $CANNOT$ form compounds with valencies which match with their respective group valencies is $B, C, N, S, O, F, P, Al, Si$

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Number of elements from the following that $CANNOT$ form compounds with valencies which match with their respective group valencies is
$B, C, N, S, O, F, P, Al, Si$