Advertisements
Advertisements
प्रश्न
How many periods and groups are there in the modern periodic table?
Advertisements
उत्तर
Eighteen groups and seven periods
APPEARS IN
संबंधित प्रश्न
Write the merits of the modern periodic table over Mendeleev’s Periodic table
Name the scientist who first of all showed that atomic number of an element is a more fundamental property than its atomic mass.
Explain why, the noble gases are placed in a separate group.
What is the number of elements is 1st period the modern periodic table?
Name two elements in Alkali metals.
Give the chemical formula of sodium sulphite
State any five features of modern periodic table.
Which of the following statements about the Modern Periodic Table is correct:
Which one of the following elements exhibit maximum number of valence electrons?
What is the general name of the last elements of the Periodic Table?
