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प्रश्न
_______ is the distance between the nucleus of the atom and its outermost shell.
विकल्प
Atomic radius
Atomic diameter
atomic mass
atomic size
उत्तर
Atomic radius is the distance between the nucleus of the atom and its outermost shell.
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संबंधित प्रश्न
Answer the following in respect of element `31/15 P`
Give its electronic configuration
Give the trends in atomic size on moving across the period left to right.
Which is greater in size an atom or a cation?
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?
Study the radius of the element given below and answer the following questions.
| elements | K | Na | Rb | Cs | Li |
| Atomic radius (pm) | 231 | 186 | 244 | 262 | 151 |
a) Which of the above elements have the smallest atom?
b) In which group of the modern periodic table the above element are belongs?
c) What is the periodic trend observed in the variation of atomic radii down a group?
The following questions refer to the Periodic Table.
What happens to the atomic size of elements moving from top to bottom of a group?
Nanometer unit is used to measure atomic radius.
Write information about the given atomic numbers in the table. 10, 20, 7.
| Atomic Number | Electronic configuration | Group | Period | Element |
| 10 | ||||
| 20 | ||||
| 7 |
Which of the following is the correct order of atomic size?
Which of the following gives the correct increasing order of the atomic radii of O, F and N?
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
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
- In below ladder symbols of elements are jumbled up. Rearrange these symbols of elements in the increasing order of their atomic number in the Periodic Table.
- Arrange them in the order of their group also.
Arrange the following in order of increasing radii:
N, O, P
Explain your choice.
In Period 3 of the Periodic Table, element B is placed to the left of element A. On the basis of this information, choose the correct word from the option to complete the following statement:
The element A would have ______ atomic size than B.
Which one of the following has the largest atomic radius?
Which one has the largest size?
Give reason for the following:
The size of a Cl− ion is greater than the size of a Cl atom.
