Advertisements
Advertisements
प्रश्न
Name two elements in Inert gas.
Advertisements
उत्तर
Neon and Argon.
APPEARS IN
संबंधित प्रश्न
What is the significance of atomic number in the modern classification of elements? Explain with the help of an example.
State how the valency of elements varies in a group of the periodic table?
What are the groups in a periodic table? Give two characteristics of each.
Name the type of elements which have one electron short of octet.
State the modern periodic law.
An element A has 2 electrons in its fourth shell. State its electronic configuration.
Give the symbol and valency of the following element and radical.
Bicarbonate
Give the symbol and valency of the following element and radical.
Hydroxide
Fill in the blank:
The element lithium in the Modern Periodic Table with valency 1+ belongs to the group ______.
A part of modern periodic table is given below. On its basis, answer the following questions:
| Group No. → | 1 | 2 | 13 | 14 | 15 | 16 | 17 | 18 |
| Period ↓ | ||||||||
| 2 | A | B | ||||||
| 3 | E | D | F | C |
Write the molecular formula of the compound formed by the combination:
A and F
