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प्रश्न
State the following:
The group which contains highly reactive electronegative non-metals including chlorine.
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उत्तर
Highly reactive group 17 [VII – A].
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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 happens to the number of valence electrons in atoms of elements as we go down a group of the periodic table?
Name the alkali metals, How many electron(s) they have in their outermost orbit.
Name the first three alkaline earth metals.
How many electrons do inert gases have in their valence shells?
Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements.
Give reason:
Alkali and alkaline earth metal compounds usually form electrovalent compounds.
Write a short note on the following type of element –
alkaline earth metals
Write a short note on the following type of element –
noble gases
State the main helpful features of the long form of the periodic table.
