Advertisements
Advertisements
प्रश्न
Fill in the blanks.
Size of the atoms ______ from left to right across a period and ______ on descending in a group of normal elements.
Advertisements
उत्तर
Size of the atoms Decrease from left to right across a period and increase on descending in a group of normal elements.
APPEARS IN
संबंधित प्रश्न
Answer the following in respect of element `31/15 P`
Give its electronic configuration
Arrange the following in order of increasing radii:
CI- , CI
Write the name and symbol of the element from the description.
The atom having the smallest atomic mass.
Write a scientific reason.
Atomic radius goes on increasing down a group.
Arrange the following as per the instruction given in the bracket:
Mg, Cl, Na, S, Si, (decreasing order of atomic size).
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:
Cl−, Cl
Explain your choice.
Which one has the largest size?
Give reason for the following:
The size of a Cl− ion is greater than the size of a Cl atom.
