The atomic numbers of three elements are given below: a,b,c 3,6,9 write the symbol of the element which belong to group 1 and group 14
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atm no.3 belongs to Group 1 since electronic configuration is 2,1 so 1 electron in the valence. Symbol is Li(lithium)
atm no. 6 belongs to Group 14 since electronic configuration is 2,4 so 4 electrons in the valence shell.
Symbol is C(carbon)
atm no. 9 belongs to Group 17 since electronic configuration is 2,7 so 7 electrons in the valence shell.
Symbol is F(fluorine)
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