Read the given passage and answer the following questions:
The elements in which the last electron enters the s-orbital of their outermost energy
level are called s- block elements. It consists of elements of group 1 and 2 having
the ground state electronic configuration of outermost shell as ns1 and ns2
respectively where n stands for outermost energy shell. The elements corresponding
to ns1configuration are called alkali metals and those corresponding to ns2
configuration are called alkaline earth metals.
(xix) What are s-block elements?
(xx) How many groups are present in s-block?
(xxi) Write down general electronic configuration of s-block elements.
(xxii) How many valence electrons are present in alkaline earth metals?
(xxiii) Give an example of alkali metal.
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Answer:
refer
Explanation:
refer the periodic table for more information,..
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