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प्रश्न
Name the metals in the first twenty elements.
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उत्तर
Li, Be, Na, Mg, Al, K and Ca.
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संबंधित प्रश्न
Why do all the elements of the same group have similar properties?
Write the merits of the modern periodic table over Mendeleev’s Periodic table
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(a) all metals
(b) all non-metals
(c) all metalloids
(d) Si is metalloid, B is metal and Ge is non-metal
On the basis of electronic configuration, how will you identify the first element of a period?
Name two elements in each case: Lanthanides
Give the symbol and valency of the following element and radical.
Bisulphate
Fill in the blank:
The element lithium in the Modern Periodic Table with valency 1+ belongs to the group ______.
Group 13 to 18 : p block : : _______ : d block
Select the appropriate options and complete the following paragraph:
(metals, non-metals, metalloids, four, seven, s-block, p-block, d-block, f-block).
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Is it a metal or a non-metal?
