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प्रश्न
The size of an atom is indicated by its _______.
विकल्प
atomic number
radius
number of shells
atomic mass
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उत्तर
The size of an atom is indicated by its radius.
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संबंधित प्रश्न
Answer the following in respect of element `31/15 P`
Give its electronic configuration
Why is the size of sodium is greater than magnesium?
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 size.
Select the correct answer
Atomic radii of fluorine and neon in angstrom unit are
What happens to the atomic size of elements on moving from left to right in a period?
The metals of Group 2 from top to bottom are Be, Mg, Ca, Sr and Ba. Which one of these elements will form ions most readily and why?
Arrange the following as per the instruction given in the bracket.
Mg, Cl, Na, S, Si (increasing order of atomic size)
The changes in the properties of elements on moving from left to right across a period of the Periodic Table. For the property, choose the correct answer.
The atomic size:
While going from top to bottom in a group the atomic radius _______.
Which among the following elements has the largest atomic radii?
Write the formula of the product formed when the element A (atomic number 19) combines with the element B (atomic number 17). Draw its electronic dot structure. What is the nature of the bond formed?
Atomic number of a few elements are given below
10, 20, 7, 14
- Identify the elements
- Identify the Group number of these elements in the Periodic Table
- Identify the Periods of these elements in the Periodic Table
- What would be the electronic configuration for each of these elements?
- Determine the valency of these elements
Arrange the following as per instruction given in the bracket.
Mg, Cl, Na, S, Si (decreasing order of atomic size)
Arrange the following in order of increasing radii:
Mg2+, Mg, Mg+
Explain your choice.
Give reason for the following:
The size of a Cl− ion is greater than the size of a Cl atom.
This question refers to the elements of the Periodic Table with atomic numbers from 3 to 18. Some of the elements are shown by letters, but the letters are not the usual symbols of the elements.
| 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| A | B | C | D | E | F | G | H |
| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| I | J | K | L | M | N | O | P |
Which of these have least atomic size in period 3?
