Advertisements
Advertisements
प्रश्न
Arrange the following as per the instruction given in the bracket
Na, K, Li (Increasing atomic size)
Advertisements
उत्तर
Li < Na < K
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 atom having the smallest atomic mass.
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?
Select the correct answer
Atomic radii of fluorine and neon in angstrom unit are
What happens to the atomic size of elements on moving from left to right in a period?
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.
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:
Right or wrong sentence.
Nanometer unit is used to measure atomic radius.
Right or wrong sentence.
The size of an atom depends on the number of valence electrons.
Arrange the following in order of increasing radii:
Mg2+, Mg, Mg+
Explain your choice.
