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प्रश्न
Name the following metal:
A metal present in period 3, group 1 of the periodic table.
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उत्तर
Sodium
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संबंधित प्रश्न
Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to group 15 of the Periodic Table. Write the electronic configuration of these two elements. Which of these will be more electronegative? Why?
Write the merits of the modern periodic table over Mendeleev’s Periodic table
Give two example of group 1 elements.
An element E has following electronic configuration:
|
K |
L |
M |
|
2 |
8 |
6 |
(a) To which group of the periodic table does element E belong?
(b) To which period of the periodic table does element E belong?
(c) State the number of valence electrons present in element E.
(d) State the valency of the element E.
Give the symbol and valency of the following element and radical.
Potassium
Give the symbol and valency of the following element and radical.
Oxygen [Oxide]
The element which has the least tendency to lose electrons is ______
In the modern periodic table, elements are arranged according to their ______
Which one of the following elements exhibit maximum number of valence electrons?
Choose an element from period 3 of modern periodic table that matches the description given below in instance. Give a reason for your choice.
It has same valency as Lithium.
