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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
संबंधित प्रश्न
On which side of the periodic table will you find non-metals?
The modern periodic table was prepared by ______.
How many groups and periods does the modern periodic table have?
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 chemical formula of carbonic acid
The K and L shells of the elements Na and Mg contain electrons.
The inert gas which lies in the third period is ______
Three elements A, B and C have 3, 4 and 2 electrons respectively in their outermost shell. Give the group number to which they belong in the Modern Periodic Table. Also, give their valencies.
Group 16 elements are collectively called as ______.
An element has 2 electrons in its N shell.
State its position in periodic table.
