Question

Please solve this, it is very urgent!!!!​

Answer 1

Step-by-step explanation:

The metallic character increases as we go down the group.

Li<Na<K<Rb<Cs is the sequence of elements in increasing metallic character the sequence of elements in decreasing non-metallic character.

Answer 2

Answer:

15

Step-by-step explanation:

17/3 +31/6 + 25/6

34+31+25 / 6

90/6

15