What do you understand by an octet of electrons in the valence shell?
(N/A) An octet of electrons in the valence shell refers to the presence of $8$ electrons in the outermost shell of an atom. Atoms with $8$ electrons in their valence shell (except for Helium,which has $2$) are considered to have a stable electronic configuration,similar to noble gases. This state is known as the octet rule,which explains why atoms tend to gain,lose,or share electrons to achieve stability.
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Sulphur dioxide $(SO_{2})$ is a colourless,pungent-smelling gas and is a major air pollutant.
$(a)$ Write the electronic configuration of its constituent elements,sulphur and oxygen.
(Given: $_{16}^{32}S, _{8}^{16}O)$
$(b)$ Write the valency of sulphur and oxygen.
$(c)$ Are sulphur and oxygen isotopes of the same element? Explain your answer.
$(a)$ Write the electronic configuration of its constituent elements,sulphur and oxygen.
(Given: $_{16}^{32}S, _{8}^{16}O)$
$(b)$ Write the valency of sulphur and oxygen.
$(c)$ Are sulphur and oxygen isotopes of the same element? Explain your answer.
Medium
View SolutionWhy is the atomic number considered a better fundamental attribute of an element than the mass number? State the reason.
Easy
View SolutionWhat information do you get from the figure about the atomic number,mass number,and valency of atoms $X$,$Y$,and $Z$? Give your answer in a tabular form.
Medium
View SolutionIn the Thomson's model of atom,which of the following statements are correct?
$(i)$ The mass of the atom is assumed to be uniformly distributed over the atom.
$(ii)$ The positive charge is assumed to be uniformly distributed over the atom.
$(iii)$ The electrons are uniformly distributed in the positively charged sphere.
$(iv)$ The electrons attract each other to stabilize the atom.
$(i)$ The mass of the atom is assumed to be uniformly distributed over the atom.
$(ii)$ The positive charge is assumed to be uniformly distributed over the atom.
$(iii)$ The electrons are uniformly distributed in the positively charged sphere.
$(iv)$ The electrons attract each other to stabilize the atom.
Medium
View SolutionFind out the valency of an element $X$ having atomic number $16$.
Medium
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