Question

4. Among the elements He*,
N14
12 Mg24
and Be8, the elements
which belong to the same period in the modern periodic table are
a)2 He" and Be 8
4
b)>N24
and Be8
24
c)12 Mg
and He

d)Be8 and
12 Mg24​

Answer 1

Answer:option b

they belong to same period-2

Answer 2

Answer:

A will be the answer ok because I have seen this type of question