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प्रश्न
Give the chemical formula of magnesium nitrate
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उत्तर
It denotes in a compound, the number of atoms of element present.
∴ Formula = \[\ce{Mg(NO3)2}\]
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संबंधित प्रश्न
The position of three elements A, B and C in the Periodic Table are shown below –
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Group 16
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Group 17
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A
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B
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C
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(a) State whether A is a metal or non-metal.
(b) State whether C is more reactive or less reactive than A.
(c) Will C be larger or smaller in size than B?
(d) Which type of ion, cation or anion, will be formed by element A?
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.
How does the metallic character of elements in Modern Periodic Table vary on moving from left to right in a period, and (ii) down a group?Give reason to justify your answer.
Fill in the following blank with suitable word:
The basis for modern periodic table is ...............
Consider the following elements:
Ca, Cl, Na, I, Li, Ba, Sr, K, Br
Separate these elements into three groups (families) of similar properties. State one property in each case on the basis of which you have made your choice.
What are the periods in a periodic table? Give two characteristics of each.
How does the electronic configuration of an atom relate to its position in the modern periodic table?
An element A has 2 electrons in its fourth shell. State its electronic configuration.
p-block is composed of groups 1 and 2.
Match the atomic number with the following:
A rare gas.
