Class 11ChemistryClassification of Elements and Periodicity in PropertiesMix Examples - Classification of Elements and Periodicity in Properties
EasyIdentify the correct statements from the following.
$(i)$ In the periodic table,about $78 \%$ of elements are metals.
$(ii)$ In a group,the metallic character decreases from top to bottom and in a period the nonmetallic character decreases from left to right.
$(iii)$ The element $Ho$ belongs to $f-$block.
$(i)$ In the periodic table,about $78 \%$ of elements are metals.
$(ii)$ In a group,the metallic character decreases from top to bottom and in a period the nonmetallic character decreases from left to right.
$(iii)$ The element $Ho$ belongs to $f-$block.
- A$i, ii, iii$
- B$ii, iii$
- C$i, iii$
- D$i, ii$
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Similar Questions
Which of the following pairs shows opposite trends when moving from left to right in a period and from top to bottom in a group?
Easy
View SolutionMatch the Column $I$ with Column $II$ and select the correct answer using the given codes.
Column $I$ (Element types) Column $II$ (Electronic configuration) $A$. Inert-gas elements $1. (n-1)d^{1-10} ns^{1-2}$ $B$. Transition elements $2. ns^2 np^6$ $C$. Inner-transition elements $3. (n-2)f^{1-14} (n-1)s^2 p^6 d^{0-1} ns^2$
| Column $I$ (Element types) | Column $II$ (Electronic configuration) |
|---|---|
| $A$. Inert-gas elements | $1. (n-1)d^{1-10} ns^{1-2}$ |
| $B$. Transition elements | $2. ns^2 np^6$ |
| $C$. Inner-transition elements | $3. (n-2)f^{1-14} (n-1)s^2 p^6 d^{0-1} ns^2$ |
Difficult
View SolutionMatch List-$I$ with List-$II$.
List-$I$ (Elements) List-$II$ (Properties) $A. Cl, S$ $I. \text{Elements with highest electronegativity}$ $B. Ge, As$ $II. \text{Elements with largest atomic size}$ $C. Fr, Ra$ $III. \text{Elements which show properties of both metals and non-metals}$ $D. F, O$ $IV. \text{Elements with highest negative electron gain enthalpy}$
Choose the correct answer from the options given below:
| List-$I$ (Elements) | List-$II$ (Properties) |
| $A. Cl, S$ | $I. \text{Elements with highest electronegativity}$ |
| $B. Ge, As$ | $II. \text{Elements with largest atomic size}$ |
| $C. Fr, Ra$ | $III. \text{Elements which show properties of both metals and non-metals}$ |
| $D. F, O$ | $IV. \text{Elements with highest negative electron gain enthalpy}$ |
Choose the correct answer from the options given below:
Which of the following statements is correct?
Medium
View SolutionMaximum number of electrons in the outermost shell of $s, p, d$,and $f$ block elements are respectively:
Medium
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