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प्रश्न
Give the chemical formula of calcium phosphate
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उत्तर
It denotes in a compound, the number of atoms of element present.
∴ Formula = \[\ce{Ca(PO4)2}\]
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संबंधित प्रश्न
Write the names given to the vertical columns and horizontal rows in the Modern Periodic Table. How does the metallic character of elements vary on moving down a vertical column? How does the size of atomic radius vary on moving left to right in a horizontal row? Give reason in support of your answer in the above two cases.
Fill in the following blank with suitable word:
The horizontal rows in a periodic table are called ...............
On which side of the periodic table will you find metals?
What is the major characteristic of the first elements in the periods of the periodic table? What is the general name of such elements?
What do you understand by typical elements?
Give the symbol and valency of the following element and radical.
Bisulphite
Fill in the blank:
The element lithium in the Modern Periodic Table with valency 1+ belongs to the group ______.
Answer the following question in one sentence.
The modern periodic table is divided into which blocks?
An X element with atomic number 11 and Y element with atomic number 13 belongs to the third period in the modern periodic table. With this information, give the answers of the below questions.
- Which element has more metallic character from these two elements?
- What is the valency of each X and Y elements?
- Atom size of Y element is smaller than atom size of X element? Explain?
Name the following metal:
A metal present in period 3, group 1 of the periodic table.
