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प्रश्न
State the number of elements in Period 3 of the Periodic Table.
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उत्तर
Period 3 is a short period that has 8 elements.
संबंधित प्रश्न
Consider the following elements:
Na, Ca, Al, K, Mg, Li
Which of these elements belong to the same group of the periodic table?
Which element has the electronic configuration 2, 8, 2?
How would the tendency to lose electrons change as we go from left to right across a period of the periodic table?
From the standpoint of atomic structure, what determines which element will be the first and which the last in a period the periodic table?
Name two elements in Alkali metals.
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.
The groups 1 and 2 constitute the ______ block.
Write an explanation.
Period
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?
Match the atomic number with the following:
A rare gas.
