the atomic number of an element A is 13.write the electronic configuration of A and on the basis of this configuration determine the group number and period number of the element A .If the element A reacts with another element B of electronic configuration 2,8.7 to form a compound ,write the formula of the compound formed.[3 marks]
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electronic configuration-
2,8,3
group- 13
period - 3
compound- AB3
2,8,3
group- 13
period - 3
compound- AB3
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Element A is Aluminium.
Electronic configuration- 2,8,3
Period no. of aluminium is 3 as it has 3 shells [K,L,M].
Group no. of aluminum is 13 as it has three valence electrons [10+3].
Formula of the compound is AlCl3 [Aluminium chloride].
Electronic configuration- 2,8,3
Period no. of aluminium is 3 as it has 3 shells [K,L,M].
Group no. of aluminum is 13 as it has three valence electrons [10+3].
Formula of the compound is AlCl3 [Aluminium chloride].
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