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प्रश्न
Write information about the given atomic numbers in the table.
| Atomic Number | Electronic configuration | Group | Period | Element |
| 10 | ||||
| 20 | ||||
| 7 |
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उत्तर
| Atomic Number | Electronic configuration | Group | Period | Element |
| 10 | 2, 8 | 18 | 2 | Neon (Ne) |
| 20 | 2, 8, 8, 2 | 2 | 4 | Calcium (Ca) |
| 7 | 2, 5 | 15 | 2 | Nitrogen (N) |
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संबंधित प्रश्न
Arrange the following as per the instruction given in the brackets:
Na, K, Li (Increasing atomic size)
Answer the following in respect of element `31/15 P `
Is it a reducing agent or oxidizing agent?
Answer the following in respect of element `31/15 P `
Give its formula with chlorine?
Arrange the elements of second and third periods in increasing order of their atomic size (excluding noble gases).
Why is the size of sodium is greater than magnesium?
Size of atom progressively becomes smaller when we move from sodium (Na) to chlorine (CI) in the third period of the periodic table?
Fill in the blank:
On moving across a period from right to left in the periodic table, the atomic size of the atom ___________.
Write the name and symbol of the element from the description.
The atom having the smallest atomic mass.
Write the name and symbol of the element from the description.
The noble gas with the smallest atomic radius.
Write a scientific reason.
Atomic radius goes on increasing down a group.
Fill in the blanks.
Size of the atoms ______ from left to right across a period and ______ on descending in a group of normal elements.
Atomic radius is expressed in the unit ______.
Right or wrong sentence.
Nanometer unit is used to measure atomic radius.
When an atom of iodine becomes an iodine ion (I–) the radius will ______
Which of the following gives the correct increasing order of the atomic radii of O, F and N?
Which among the following elements has the largest atomic radii?
Which of the following are the characteristics of isotopes of an element?
- Isotopes of an element have same atomic masses
- Isotopes of an element have same atomic number
- Isotopes of an element show same physical properties
- Isotopes of an element show same chemical properties
Arrange the following elements in increasing order of their atomic radii.
- Li, Be, F, N
- Cl, At, Br I
An element with the largest atomic radius among the following is ______.
Arrange the following in order of increasing radii:
N, O, P
Explain your choice.
