Advertisements
Advertisements
प्रश्न
The position of elements A, B, C, D and E in the periodic table are shown below:
|
Group 1 |
Group 2 |
Group 17 |
Group 18 |
|
|
|
|
D |
|
|
B |
C |
|
|
A |
|
|
E |
Which is larger in size (i) D or E (ii) B or C
Advertisements
उत्तर
E
B
APPEARS IN
संबंधित प्रश्न
Write the number of horizontal rows in the modern periodic table. What are these rows called?
Consider two elements 'A' (Atomic number 17) and 'B' (Atomic number 19) :
(i) Write the positions of these elements in the modern periodic table giving justification.
(ii) Write the formula of the compound formed when 'A' combines with 'B.'
(iii) Draw the electron dot structure of the compound and state the nature of the bond formed between the two elements.
How do electronic configurations of elements change in second period of periodic table with increase in atomic numbers?
How does the number of:
valency vary on moving from left to right in the second period of the periodic table?
Complete the following sentences
The similarities in the properties of a group of elements are because they have the same …………………
What is the common feature of the electronic configuration of the elements at the end of period 2, and period 3?
What is meant by periodicity of elements?
Fill in the blank
Most electropositive elements belong to ______ group.
What is the common feature of the electronic configuration of the elements at the end of Period 2 and Period 3?
Which of the following would weigh the least?
(Atomic masses C = 12, 0 = 16, Na = 23)
