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प्रश्न
Arrange the following as per the instruction given in the bracket:
Carbon, Fluorine, Beryllium (decreasing order of atomic size).
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उत्तर
Beryllium > Carbon > Fluorine
Explanation:
As we proceed along a period, the size of the atom decreases due to increased nuclear pull.
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संबंधित प्रश्न
Give the trends in atomic size on moving down the group.
Give the trends in atomic size on moving across the period left to right.
Give reasons for the following:
The size of the anion is greater than the size of the parent atom.
Write the name and symbol of the element from the description.
The noble gas with the smallest atomic radius.
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?
Arrange the following in increasing order of property indicated
I, I+, I- (atomic size)
Arrange the following as per the instruction given in the bracket
Na, K, Li (Increasing atomic size)
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:
Write the formula of the product formed when the element A (atomic number 19) combines with the element B (atomic number 17). Draw its electronic dot structure. What is the nature of the bond formed?
Arrange the following in order of increasing radii:
N, O, P
Explain your choice.
