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प्रश्न
What are the periods in a periodic table?
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उत्तर
“Horizontal rows from left to right in a periodic table are called periods.”
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संबंधित प्रश्न
What is the name of those elements which divide metals and non-metals in the periodic table?
Explain why All the elements of a period have different chemical properties.
Name two elements in each case:
Transition element
What is meant in the periodic table by a period?
State the number of elements in Period 3 of the Periodic Table.
Group 13 to 18 : p block : : _______ : d block
The modern periodic table is divided into which blocks?
The scientist who propounded the modern periodic law 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 Noble gas?
State the group and period, of the element having three shells with three electrons in valence shell.
