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प्रश्न
(b) What is the number of elements is 3rd period, the modern periodic table?
उत्तर
(b) The number of elements in 3rd period is 8 in the modern periodic table.
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संबंधित प्रश्न
Explain why All the elements of a group have similar chemical properties.
What happens to the number of valence electrons in the atoms of elements as we go down in a group of the periodic table?
What is a group in the periodic table?
What are the periods in a periodic table? Give two characteristics of each.
Name the type of elements which have two outermost shell incomplete.
Arrange the elements of second and third periods in increasing order of their atomic size.
Third Period.
Mendeleev's periodic table : atomic mass : : Modern periodic table : _______
Group 1 and 2 : s block : : group 13 and 18 : _______
The scientist who propounded the modern periodic law is ______.
Which of the following statements about the Modern Periodic Table is correct:
