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प्रश्न
Give the symbol and valency of the following element and radical.
Ammonium
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उत्तर
| Element/Radical | Symbol | Valency |
| Ammonium | NH4 | one |
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संबंधित प्रश्न
Is it possible to have an element having atomic number 1.5 placed between hydrogen and helium?
Which of the following statement about the modern periodic table is correct?
(a) It has 18 horizontal rows known as periods.
(b) It has 7 vertical columns known as periods.
(c) It has 18 vertical columns known as groups.
(d) It has 7 horizontal rows known as groups.
How would the tendency to gain electrons change on moving from left to right in a period of the periodic table?
What is the major characteristic of the first elements in the periods of the periodic table? What is the general name of such elements?
Explain why, the first period of the periodic table has only two elements whereas second period has eight elements
State its position in the periodic table?
Give the symbol and valency of the following element and radical.
Nitrate
Identify gas A in the following experiment.
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 Noble gas?
Match the atomic number with the following:
An element of group 2.
