Advertisements
Advertisements
प्रश्न
Give the symbol and valency of the following element and radical.
Ammonium
Advertisements
उत्तर
| Element/Radical | Symbol | Valency |
| Ammonium | NH4 | one |
APPEARS IN
संबंधित प्रश्न
State modern periodic law.
The atomic particle whose number in the atoms of an element always remains the same and which forms the real basis for the modern classification of elements is:
(a) electron
(b) proton
(c) neutron
(d) meson
How do the atomic radii of elements change as we go from left to right in a period of the periodic table?
State the modern periodic law for the classification of elements. How many (i) groups and (ii) periods are there in the modern periodic table?
The horizontal rows in a periodic table are called _____.
Give the symbol and valency of the following element and radical.
Zinc
What are the elements.
Write an explanation.
Period
Spot the error:
The elements of group 13 are called the carbon family.
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?
