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प्रश्न
State the group and period, of the element having three shells with three electrons in valence shell.
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उत्तर
If there are three shells, the element belongs to the third period. An element with three valence electrons belongs to the 13 group.
संबंधित प्रश्न
In the Modern Periodic Table, which are the metals among the first ten elements?
How do the atomic radii of elements change as we go from left to right in a period of the periodic table?
(b) What is the number of elements is 3rd period, the modern periodic table?
Consider the following elements:
20Ca, 8O, 18Ar, 16S, 4Be, 2He
Which of the above elements would you expect to be:
(i) very stable?
(ii) in group 2 of the periodic table?
(iii) in group 16 of the periodic table?
Name the scientist who stated the modern periodic law.
From the standpoint of atomic structure, what determines which elements will be the first and which the last in a period of the periodic table?
The d-block elements are called as _______ elements.
In the modern periodic table, the positions of 1 to 20 elements are shown here. Identify the elements A and B. Write their atomic number.
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.
An element which is an essential constituent of all organic compounds belongs to
