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प्रश्न
While going from top to bottom in a group the atomic radius _______.
विकल्प
increases
decreases
remains same
No change occurs
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उत्तर
While going from top to bottom in a group the atomic radius increases.
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संबंधित प्रश्न
Answer the following in respect of element `31/15 P`
Give its electronic configuration
What do you understand by atomic size? State its unit?
Give the trends in atomic size on moving across the period left to right.
Why is the size of neon greater than fluorine?
Which is greater in size an atom or an anion?
Size of atom progressively becomes smaller when we move from sodium (Na) to chlorine (CI) in the third period of the periodic table?
Write the name and symbol of the element from the description.
The atom having the smallest size.
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.
Supply the missing word from those in the brackets:
If an element has seven electrons in its outermost shell then it is likely to have the ______ (largest/ smallest) atomic size among all the elements in the same period.
_______ is the distance between the nucleus of the atom and its outermost shell.
Write scientific reason.
In same period, boron and oxygen elements have different atomic size.
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 |
An element X has mass number 40 and contains 21 neutrons in its atom. To which group of the Periodic Table does it belong?
Which of the following is the correct order of size?
Which of the following is the correct order of atomic size?
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)
Which one of the following has the largest atomic radius?
Which one has the largest size?
