Advertisements
Advertisements
Question
Arrange the following as per the instruction given in the bracket
Na, K, Li (Increasing atomic size)
Solution
Li < Na < K
APPEARS IN
RELATED QUESTIONS
Why is the size of neon greater than fluorine?
Which is greater in size Fe2+ or Fe3+?
Write scientific reason.
Atomic radius goes on increasing down a group.
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?
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:
On moving from left to right in a periodic table, the size of the atom _______.
While going from top to bottom in a group the atomic radius _______.
Write an Explanation.
Atomic radius
When an atom of iodine becomes an iodine ion (I–) the radius will ______
Give reason for the following:
The size of a Cl− ion is greater than the size of a Cl atom.