Advertisements
Advertisements
प्रश्न
Which of the following statements about the Modern Periodic Table is correct:
पर्याय
It has 18 horizontal rows known as Periods
It has 7 vertical columns known as Periods
It has 18 vertical columns known as Groups
It has 7 horizontal rows known as Groups
उत्तर
It has 18 vertical columns known as Groups
Explanation -
The modern periodic table has 18 vertical columns known as Groups.
APPEARS IN
संबंधित प्रश्न
Which element has two shells, both of which are completely filled with electrons?
Answer the following in respect of element `31/15 P`
Give its electronic configuration
The electronic configuration of an element T is 2, 8, 8, 1.
What is the group number of T?
Give the symbol and valency of the following element and radical.
Oxygen [Oxide]
Give the symbol and valency of the following element and radical.
Nitrate
The modern periodic table shows the molecular masses of the elements in each frame.
In the modern periodic table, elements are arranged according to their ______
The inert gas which lies in the third period is ______
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 |
Which of the element is a Metalloid?
An element belonging to 3d series of modern periodic table has spin magnetic moment = 5.92 B.M. in +3 oxidation state. The atomic number of elements are ______.
