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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
How were the positions of cobalt and nickel resolved in the modern periodic table?
Consider the following elements:
Na, Ca, Al, K, Mg, Li
Which of these elements belong to the same period of the periodic table?
On the basis of electronic configuration, how will you identify the first element of a period?
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?
State its position in the periodic table?
Answer the following in respect of element `31/15 P`
Give its electronic configuration
Name an element of group 18 which can form compounds.
Give the symbol and valency of the following element and radical.
Hydrogen
Give the symbol and valency of the following element and radical.
Bisulphite
Where would you locate the element with electronic configuration 2,8 in the Modern Periodic Table?
