Class 11ChemistryClassification of Elements and Periodicity in PropertiesExtended or long form of periodic table
EasyAn element with atomic number $20$ will be placed in which period of the periodic table?
- A$4$
- B$3$
- C$2$
- D$1$
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Similar Questions
The element with atomic number $12$ belongs to ......... group and ......... period.
Identify the incorrect match :
Temporary Systematic Name $IUPAC$ Official Name $a$. Unnilunium $(101)$ $i$. Mendelevium $(Md)$ $b$. Unniltrium $(103)$ $ii$. Lawrencium $(Lr)$ $c$. Unnilhexium $(106)$ $iii$. Seaborgium $(Sg)$ $d$. Ununnilium $(110)$ $iv$. Darmstadtium $(Ds)$
| Temporary Systematic Name | $IUPAC$ Official Name |
|---|---|
| $a$. Unnilunium $(101)$ | $i$. Mendelevium $(Md)$ |
| $b$. Unniltrium $(103)$ | $ii$. Lawrencium $(Lr)$ |
| $c$. Unnilhexium $(106)$ | $iii$. Seaborgium $(Sg)$ |
| $d$. Ununnilium $(110)$ | $iv$. Darmstadtium $(Ds)$ |
What is the number of elements in periods $1$ to $7$ of the periodic table?
Easy
View SolutionWhat is the main basis for the arrangement of elements in the modern periodic table? Describe it.
Medium
View SolutionThe long form of the periodic table is based on:
Easy
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