1) Ca-37, with a half-life of 181.1(10) ms.
Answer:
A
Explanation:
Germanium and Carbon are in the same 14th group.
Answer: (C) Statements (i) and (iii)
Explanation: According to byjus.com, group VII elements are known as Halogens.
Not only that, but bbc.co.uk says " Atoms of group 7 elements all have seven electrons in their outer shell. This means that the halogens all have similar chemical reactions ."
It may just be (b) though as these are chemical reactions.