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प्रश्न
Give reason:
Alkali and alkaline earth metal compounds usually form electrovalent compounds.
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उत्तर
Alkali metals and alkaline earth metals have 1 and 2 valence electrons, respectively, in their outermost shell.
They can lose electrons to atoms of non-metals to form an electrovalent compound.
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संबंधित प्रश्न
Consider the following elements: Be, Li, Na, Ca, K. Name the elements of (a) same group (b) same period.
What are the following group known as?
Group 17
How do atomic structures (electron arrangements) change in a period with an increase in atomic numbers moving left to right?
What happens to the number of valence electrons in atoms of elements as we go down a group of the periodic table?
Take any one alkali metal and write its reaction with (i)oxygen (ii)water (iii)acid.
Name the first three alkaline earth metals.
Name the gas used in:
Filling balloons
Give reason:
Alkali metals are kept in an inert solvent.
Write a short note on the following type of element –
alkali metals
Name or state following with reference to the element of the first three periods of the periodic table.
An alkaline earth metal in period 3.
