Class 11ChemistryClassification of Elements and Periodicity in PropertiesExtended or long form of periodic table
EasyWhich period contains most of the man-made radioactive elements?
- APeriod $5$
- BPeriod $6$
- CPeriod $7$
- DPeriod $4$
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Similar Questions
The element with atomic number $36$ belongs to which block in the periodic table?
Easy
View SolutionWhat is the maximum number of elements possible in a period? Where are they located?
Easy
View SolutionMatch the items in List-$A$ with the items in List-$B$ and select the correct option.
List-$A$ List-$B$ $(1)$ Atomic number: $101$ $(A)$ $IUPAC$ symbol: $Rf$ $(2)$ Atomic number: $104$ $(B)$ $IUPAC$ symbol: $No$ $(3)$ Atomic number: $116$ $(C)$ $IUPAC$ name: Mendelevium $(4)$ Atomic number: $109$ $(D)$ Name: $Unnilennium$ $(E)$ Symbol: $Lv$ $(F)$ $IUPAC$ name: $Meitnerium$
| List-$A$ | List-$B$ |
| $(1)$ Atomic number: $101$ | $(A)$ $IUPAC$ symbol: $Rf$ |
| $(2)$ Atomic number: $104$ | $(B)$ $IUPAC$ symbol: $No$ |
| $(3)$ Atomic number: $116$ | $(C)$ $IUPAC$ name: Mendelevium |
| $(4)$ Atomic number: $109$ | $(D)$ Name: $Unnilennium$ |
| $(E)$ Symbol: $Lv$ | |
| $(F)$ $IUPAC$ name: $Meitnerium$ |
Medium
View SolutionWhere is helium placed in the periodic table and why?
Easy
View SolutionThe $IUPAC$ symbol for the element with atomic number $108$ is
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