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प्रश्न
What is the general name of the last elements of the Periodic Table?
उत्तर
General name of the last elements of the Periodic Table is Inert Gases.
संबंधित प्रश्न
What is the name of those elements which divide metals and non-metals in the periodic table?
On the basis of electronic configuration, how will you identify the first element of a period?
What is the number of elements is 1st period the modern periodic table?
Which of the following are the correct characteristics of isotopes of an element?
(i) same atomic mass
(ii) same atomic number
(iii) same physical properties
(iv) same chemical properties
(a) (i), (ii) and (iv)
(b) (ii), (iii) and (iv)
(c) (ii) and (iii)
(d) (ii) and (iv)
Name two elements in Alkaline earth metals.
Give the symbol and valency of the following element and radical.
Sulphur [Sulphide]
The modern periodic table shows the molecular masses of the elements in each frame.
Distinguish between:
Group 17 - Group 18
______ group elements are called alkaline earth metals.
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?
