MHT CET Chemistry question
Which of the following noble gases has the lowest atomic number?
Answer: (A)
Solution
Atomic numbers are He = 2, Ne = 10, Kr = 36, Xe = 54, so He is the lowest. Hence the correct option is (a).
Which of the following noble gases has the lowest atomic number?
Atomic numbers are He = 2, Ne = 10, Kr = 36, Xe = 54, so He is the lowest. Hence the correct option is (a).