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प्रश्न
Arrange the following as per instruction given in the bracket.
Mg, Cl, Na, S, Si (decreasing order of atomic size)
उत्तर
Na > Mg > Si > S > Cl
∴ Atomic size reduces when moving from left to right in the third phase.
संबंधित प्रश्न
Give the trends in atomic size on moving across the period left to right.
Which is greater in size Fe2+ or Fe3+?
Give reasons for the following:
The size of the anion is greater than the size of the parent atom.
Fill in the blanks.
Size of the atoms ______ from left to right across a period and ______ on descending in a group of normal elements.
The following questions refer to the Periodic Table.
What happens to the atomic size of elements moving from top to bottom of a group?
Atomic radius is expressed in the unit _______.
Some elements and their atomic radii are given here. Arrange them in decreasing order of their atomic radii. Identify which of the above elements is the biggest atom and which is smallest?
| Element | K | Na | Rb | Cs | Li |
| Atomic radius (pm) | 231 | 186 | 244 | 262 | 151 |
Which of the following is the correct order of atomic size?
Elements have been arranged in the following sequence on the basis of their increasing atomic masses.
| F, | Na, | Mg, | Al, | Si, | P, | S, | Cl, | Ar, | K |
- Pick two sets of elements which have similar properties.
- The given sequence represents which law of classification of elements?
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
