Class 10SciencePeriodic Classification of ElementsMix Examples - Periodic Classification of Elements
MediumExplain the basic character of oxides of elements down the group and across the period.
(N/A) The basic nature of oxides decreases across a period from left to right. It changes from basic to acidic.
The basic nature of oxides increases down a group from top to bottom.
These variations in the acidic and basic nature of oxides are related to the electronegativity of the element. As the electronegativity of the element increases along a period,the acidic character of the oxide increases. Conversely,as the electronegativity of the element decreases down a group,the basic character of the oxide increases.
The basic nature of oxides increases down a group from top to bottom.
These variations in the acidic and basic nature of oxides are related to the electronegativity of the element. As the electronegativity of the element increases along a period,the acidic character of the oxide increases. Conversely,as the electronegativity of the element decreases down a group,the basic character of the oxide increases.
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Similar Questions
The element with atomic number $14$ is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
Medium
View SolutionThree elements $A$, $B$, and $C$ have $3$, $4$, and $2$ electrons respectively in their outermost shell. Determine the group number to which they belong in the Modern Periodic Table and state their valencies.
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View SolutionWhat is meant by 'group' in the modern periodic table? How do the following change on moving from top to bottom in a group?
$(i)$ Number of valence electrons
$(ii)$ Number of occupied shells
$(iii)$ Size of atoms
$(iv)$ Metallic character of elements
$(v)$ Effective nuclear charge experienced by valence electrons.
$(i)$ Number of valence electrons
$(ii)$ Number of occupied shells
$(iii)$ Size of atoms
$(iv)$ Metallic character of elements
$(v)$ Effective nuclear charge experienced by valence electrons.
Medium
View SolutionJustify the following statements:
$(a)$ Cations are smaller in size than the corresponding neutral atom.
$(b)$ The size of the atom increases as we move down a group.
$(c)$ Atomic size decreases as we move across a period.
$(a)$ Cations are smaller in size than the corresponding neutral atom.
$(b)$ The size of the atom increases as we move down a group.
$(c)$ Atomic size decreases as we move across a period.
Medium
View SolutionWhich of the following are the characteristics of isotopes of an element?
$(i)$ Isotopes of an element have same atomic masses
$(ii)$ Isotopes of an element have same atomic number
$(iii)$ Isotopes of an element show same physical properties
$(iv)$ Isotopes of an element show same chemical properties
$(i)$ Isotopes of an element have same atomic masses
$(ii)$ Isotopes of an element have same atomic number
$(iii)$ Isotopes of an element show same physical properties
$(iv)$ Isotopes of an element show same chemical properties
Medium
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