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प्रश्न
What is meant in the periodic table by a period?
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उत्तर
In a periodic table, elements are arranged in the order of increasing atomic numbers in horizontal rows called periods.
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संबंधित प्रश्न
How does the tendency of elements to gain electrons change as we move from left to right in a period? State the reason of this change.
On which side of the periodic table will you find non-metals?
State how the valency of elements varies in a period of the periodic table?
Define:
Periodic table
What are horizontal rows and vertical columns in a periodic table known as?
Give the symbol and valency of the following element and radical.
Chlorine [Chloride]
What are the elements.
The d-block elements are called as _______ elements.
Write scientific reason.
There was ambiguity about the correct position of hydrogen in Mendeleev’s periodic table.
- Write the electronic configuration of element X, given by its symbol as under: \[\ce{^40_20 X}\]
- Determine its position in the modem periodic table.
- What is the nature of its oxide?
- Name one other element of its group.
