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प्रश्न
Name the scientist who stated the modern periodic law.
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उत्तर
Henry Moseley stated the modern periodic law.
संबंधित प्रश्न
Fill in the blank:
The modern periodic table consists of ……………. periods.
Fill in the following blank with suitable word:
Group 1 elements are called ...............
How were the positions of cobalt and nickel resolved in the modern periodic table?
where should hydrogen be placed in the modern periodic table? Give reason for your answer.
Explain why, the noble gases are placed in a separate group.
State how the valency of elements varies in a group of the periodic table?
Name the type of elements which have one electron short of octet.
Explain structure of modern periodic table in short.
Which of the following is the outermost shell for elements of period 2?
Arrange the following elements in the increasing order of their metallic character
| Mg, | Ca, | K, | Ge, | Ga |
