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प्रश्न
An element has 2 electrons in its N shell.
State its position in periodic table.
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उत्तर
Electronic configuration of the element is:
| K | L | M | N |
| 2 | 8 | 8 | 2 |
∴ Position in the periodic table is the 4th period. (Four shells).
संबंधित प्रश्न
Write the merits of the modern periodic table over Mendeleev’s Periodic table
How many groups and periods does the modern periodic table have?
Give the symbol and valency of the following element and radical.
Bisulphate
What are the elements.
Which of the following statements about the Modern periodic table is correct?
Find the odd one out and give its explanation.
Find the odd one out and give its explanation.
In the modern periodic table, the positions of 1 to 20 elements are shown here. Identify the elements A and B. Write their atomic number.
Explain structure of modern periodic table in short.
The longest period of the Modern Periodic Table is period.
