Easy
How many periods and groups are there in Mendeleev's periodic table?
- A$7$ periods and $8$ groups
- B$7$ periods and $18$ groups
- C$8$ periods and $7$ groups
- D$6$ periods and $8$ groups
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Similar Questions
Which elements were at the peaks of the Lothar Meyer curve?
Easy
View SolutionGiven below are the atomic masses of the elements:
Element $Li$ $Na$ $Cl$ $K$ $Ca$ $Br$ $Sr$ $I$ $Ba$ Atomic Mass $(g \cdot mol^{-1})$ $7$ $23$ $35.5$ $39$ $40$ $80$ $88$ $127$ $137$
Which of the following does not form a $Dobereiner's$ triad?
| Element | $Li$ | $Na$ | $Cl$ | $K$ | $Ca$ | $Br$ | $Sr$ | $I$ | $Ba$ |
|---|---|---|---|---|---|---|---|---|---|
| Atomic Mass $(g \cdot mol^{-1})$ | $7$ | $23$ | $35.5$ | $39$ | $40$ | $80$ | $88$ | $127$ | $137$ |
Which of the following does not form a $Dobereiner's$ triad?
MediumKCET 2025
View SolutionThe modern periodic table is based on the atomic number of the elements. The experiment which proved the significance of the atomic number was:
What is the periodic table according to Glenn $T$. Seaborg?
Medium
View SolutionWhat will be the formula of '$M$' nitrate based on the given Lothar Meyer curve?
Difficult
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