Class 10SciencePeriodic Classification of ElementsMix Examples - Periodic Classification of Elements
EasyState the reason for the following:
$(a)$ The elements of the same group have similar chemical properties.
$(b)$ The elements of the same period have different properties.
$(a)$ The elements of the same group have similar chemical properties.
$(b)$ The elements of the same period have different properties.
- AElements in the same group have the same number of valence electrons.
- BElements in the same group have different numbers of valence electrons.
- CElements in the same period have the same number of valence electrons.
- DElements in the same period have the same number of shells.
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Similar Questions
Write two reasons responsible for the late discovery of noble gases.
Easy
View SolutionThe electronic configurations of $4$ elements $A, B, C,$ and $D$ are as follows:
$A: 2, 1$
$B: 2, 2$
$C: 2, 8, 2$
$D: 2$
$(a)$ Which of these elements belong to the same group? Name them.
$(b)$ Which of these elements belong to the same period? Name them.
$(c)$ Which of these elements is inert? Name it.
$A: 2, 1$
$B: 2, 2$
$C: 2, 8, 2$
$D: 2$
$(a)$ Which of these elements belong to the same group? Name them.
$(b)$ Which of these elements belong to the same period? Name them.
$(c)$ Which of these elements is inert? Name it.
Where would you locate the element with electronic configuration $2, 8$ in the Modern Periodic Table?
Easy
View SolutionThe 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?
Easy
View SolutionFour elements $P, Q, R$ and $S$ have atomic numbers $12, 13, 14$ and $15$ respectively.
Answer the following questions giving reasons:
$(i)$ What is the valency of $Q$?
$(ii)$ Classify these elements as metals and non-metals.
$(iii)$ Which of these elements will form the most basic oxide?
Answer the following questions giving reasons:
$(i)$ What is the valency of $Q$?
$(ii)$ Classify these elements as metals and non-metals.
$(iii)$ Which of these elements will form the most basic oxide?
Medium
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