Question

a) Which one of the following statement is correct?
1) All group contain both metal and non-metals
ii) in group 17 reactivity decreases down the group
i) in group 1 reactivity decreases down the group
iv) Atoms of same group have same number of electrons
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Answer 1

Answer:

3 in griup 1 reactivity deacreases down in the group

Answer 2

Answer:

option 3 .. is the answer