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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.
संबंधित प्रश्न
Name the scientist who prepared modern periodic table.
Name two elements in each case: Lanthanides
The electronic configuration of an element T is 2, 8, 8, 1.
What is the period number of T?
State the main aim of classifying elements. Which is the more fundamental property of elements that is used in the development of Modern Periodic Table? Name and state the law based on this fundamental property. On which side of the periodic table one can find metals, non-metals and metalloids?
Give the symbol and valency of the following element and radical.
Sulphate
Give the chemical formula of sodium bicarbonate
Give the chemical formula of calcium phosphate
How were elements arranged in the long form of the periodic table or the Modern Periodic Table?
Group 13 to 18 : p block : : _______ : d block
State the group and period, of the element having three shells with three electrons in valence shell.
