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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
What do you understand by atomic size? State its unit?
Which is greater in size an atom or an anion?
Give reasons for the following:
The size of the anion is greater than the size of the parent atom.
The following questions refer to the Periodic Table.
What happens to the atomic size of elements moving from top to bottom of a group?
Arrange the following as per the instruction given in the bracket
Na, K, Li (Increasing atomic size)
Atomic radius is expressed in the unit ______.
While going from top to bottom in a group the atomic radius ______.
Right or wrong sentence.
Moving from left to right, the size of the atom decreases.
Right or wrong sentence.
The size of an atom depends on the number of valence electrons.
Write an explanation.
Atomic radius
When an atom of iodine becomes an iodine ion (I–) the radius will ______
Which among the following elements has the largest atomic radii?
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
Arrange the following elements in increasing order of their atomic radii.
- Li, Be, F, N
- Cl, At, Br I
An element X (atomic number 17) reacts with an element Y (atomic number 20) to form a divalent halide.
- Where in the periodic table are elements X and Y placed?
- Classify X and Y as metal (s), non-metal (s) or metalloid (s)
- What will be the nature of oxide of element Y? Identify the nature of bonding in the compound formed
- Draw the electron dot structure of the divalent halide
Arrange the following in order of increasing radii:
Mg2+, Mg, Mg+
Explain your choice.
Which one of the following has the largest atomic radius?
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?
