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प्रश्न
What are groups and periods in the modern periodic table?
उत्तर
- The horizontal rows are called periods. There are seven periods in the periodic table.
- Vertical columns in the periodic table starting from top to bottom are called groups. There are 18 groups in the periodic table.
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संबंधित प्रश्न
Fill in the following blank with suitable word:
Group 1 elements are called ...............
Fill in the following blank with suitable word:
Group 18 elements are called ...............
How would the tendency to gain electrons change on moving from left to right in a period of the periodic table?
State whether the following statement is true or false:
On going down in a group of the periodic table, the number of valence electrons increases.
Name the type of elements which have one electron short of octet.
Answer the following in respect of element `31/15 P `
To which group and period does it belong?
Give the symbol and valency of the following element and radical.
Nitrate
The K and L shells of the elements Na and Mg contain electrons.
The arrangement of elements in the Modem Periodic Table is based on their ______
Group 16 elements are collectively called as ______.
