Class 11ChemistryClassification of Elements and Periodicity in PropertiesMix Examples - Classification of Elements and Periodicity in Properties
MediumAn element of atomic weight $40$ has $2, 8, 8, 2$ as the electronic configuration. Which one of the following statements regarding this element is not correct?
- AIt belongs to $II$ group of the periodic table.
- BIt has $20$ neutrons.
- CThe formula of its oxide is $MO_2$.
- DIt belongs to $4^{th}$ period of the periodic table.
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Similar Questions
Match the properties of elements given in List-$I$ with List-$II$.
List-$I$ List-$II$ $(1)$ Active non-metal with high electron gain enthalpy. $(A)$ $Na$ $(2)$ Soft metal with low ionization enthalpy. $(B)$ $Sb$ $(3)$ Metalloid that forms ${M_2}{O_3}$ type oxide. $(C)$ $He$ $(4)$ Chemically inert gas. $(D)$ $Cl$
| List-$I$ | List-$II$ |
| $(1)$ Active non-metal with high electron gain enthalpy. | $(A)$ $Na$ |
| $(2)$ Soft metal with low ionization enthalpy. | $(B)$ $Sb$ |
| $(3)$ Metalloid that forms ${M_2}{O_3}$ type oxide. | $(C)$ $He$ |
| $(4)$ Chemically inert gas. | $(D)$ $Cl$ |
Medium
View SolutionCount the number of properties which have higher value for '$O$' atom than that of '$S$': Ionisation potential, Electron affinity, Covalent radius, Electronegativity.
Medium
View SolutionWhich of the following statements is/are wrong?
Difficult
View SolutionWhich one of the following is an incorrect statement?
Easy
View SolutionAs we go from left to right in period $2$ of the periodic table,the gram atomic volume of the elements:
Easy
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