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प्रश्न
Give the trends in atomic size on moving across the period left to right.
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उत्तर
Atomic size decreases from left to right as the Atomic Number increases by one at each stage, with one proton added to the nucleus and one electron added to the valence shell. As nuclear attraction rises, the size of the atom decreases.
संबंधित प्रश्न
Which is greater in size an atom or a cation?
Give reason for the following:
Argon atom is bigger than chlorine atom.
The changes in the properties of elements on moving from left to right across a period of the Periodic Table. For the property, choose the correct answer.
The atomic size:
Nanometer unit is used to measure atomic radius.
The size of an atom depends on the number of valence electrons.
Carbon belongs to the second period and Group 14. Silicon belongs to the third period and Group 14. If the atomic number of carbon is 6, the atomic number of silicon is ______
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
Which one of the following depict the correct representation of atomic radius(r) of an atom?
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(i) |
(ii) |
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(iii) |
(iv) |
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.
