Advertisements
Advertisements
प्रश्न
______ and ______ are called inner transition elements.
उत्तर
Lanthanides and Actinides are called inner transition elements.
APPEARS IN
संबंधित प्रश्न
How many periods and groups are there in the long form of periodic table?
Give two example of group 1 elements.
In the modern Periodic Table, why does cobalt with higher atomic mass of 58.93 appear before nickel having lower atomic mass of 58.71?
Write a short note.
Position of isotopes in the Mendeleev’s and the modern periodic table.
Fill in the blank:
The element lithium in the Modern Periodic Table with valency 1+ belongs to the group ______.
Distinguish between:
s-block - p-block
Explain structure of modern periodic table in short.
The arrangement of elements in the Modem Periodic Table is based on their ______
Element ‘X’ forms a chloride with the formula XCl2, which is solid with a high melting point. X would most likely be in the same group of the periodic table as: ______
Select the appropriate options and complete the following paragraph:
(metals, non-metals, metalloids, four, seven, s-block, p-block, d-block, f-block).
On the basis of electronic configuration, elements in the modern periodic table are classified Into ______ blocks. Groups 1 and 2 elements are included in ______ and all these elements are metals. (except Hydrogen). Group 13 to 18 elements are included in ______. This block contains metals, non-metals and metalloids. Group 3 to 12 elements are included in ______ and all the elements are ______ elements shown at the bottom of the periodic table i.e. Lanthanides and Actinides constitute ______ and all these elements are metals.
