Advertisements
Advertisements
प्रश्न
Arrange the following in order of increasing radii:
Cl−, Cl
Explain your choice.
Advertisements
उत्तर
Cl < Cl−
Explanation:
The radius of an anion is more than the parent atom.
APPEARS IN
संबंधित प्रश्न
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?
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.
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.
Which one of the following depict the correct representation of atomic radius(r) of an atom?
|
(i) |
(ii) |
|
(iii) |
(iv) |
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
Arrange the following in order of increasing radii:
Mg2+, Mg, Mg+
Explain your choice.
Which one of the following has the largest atomic radius?
