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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.
Explanation:
The size of an atom is defined by its atomic radius, which is the distance from the center of the nucleus to the outermost shell of electrons. While the number of shells influences the size, the physical dimension itself is specifically measured and referred to as the radius.
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संबंधित प्रश्न
Arrange the following as per the instruction given in the bracket:
Mg, Cl, Na, S, Si (decreasing order of atomic size).
Why is the size of sodium is greater than magnesium?
Which is greater in size an atom or a cation?
Which is greater in size an atom or an anion?
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.
Write the name and symbol of the element from the description.
The atom having the smallest atomic mass.
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.
On moving from left to right in a periodic table, the size of the atom ______.
_______ is the distance between the nucleus of the atom and its outermost shell.
Atomic radius is expressed in the unit ______.
Write an explanation.
Atomic radius
Write information about the given atomic numbers in the table.
| Atomic Number | Electronic configuration | Group | Period | Element |
| 10 | ||||
| 20 | ||||
| 7 |
Which among the following elements has the largest atomic radii?
- 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 as per the instruction given in the bracket:
Carbon, Fluorine, Beryllium (decreasing order of atomic size).
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?
