Advertisements
Advertisements
Question
Give the trends in atomic size on moving down the group.
Advertisements
Solution 1
The atomic size of an atom increases when we go down a group from top to bottom.
Solution 2
Moving down a group causes an increase in atomic size, which also changes with period. An additional shell is added, increasing the atom's size.
APPEARS IN
RELATED QUESTIONS
What do you understand by atomic size? State its unit?
Which is greater in size an atom or an anion?
Write the name and symbol of the element from the description.
The atom having the smallest size.
Write the name and symbol of the element from the description.
The atom having the smallest atomic mass.
The following questions refer to the Periodic Table.
What happens to the atomic size of elements moving from top to bottom of a group?
The metals of Group 2 from top to bottom are Be, Mg, Ca, Sr and Ba.
- Which one of these elements will form ions most readily and why?
- State the common feature in their electronic configuration.
Arrange the following as per the instruction given in the bracket
Na, K, Li (Increasing atomic size)
Right or wrong sentence.
The size of an atom depends on the number of valence electrons.
Some elements and their atomic radii are given here. Arrange them in decreasing order of their atomic radii. Identify which of the above elements is the biggest atom and which is smallest?
| Element | K | Na | Rb | Cs | Li |
| Atomic radius (pm) | 231 | 186 | 244 | 262 | 151 |
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?
