Helium has the electronic configuration 2. Ne has the electronic configuration 2,8. (i) write the inference about their reactivity from their electronic configuration. (ii) what do these atoms have in common? (iii) In which group of the periodic table are these elements placed?
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Neon is more inert than Helium
Both are noble gases
They are placed in group 18 of the periodic table
Both are noble gases
They are placed in group 18 of the periodic table
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