Q.20 Which of the following
elements are stable? *
O A) Hydrogen and helium
O )
B) Chlorine and fluorine
C) Nitrogen and Oxygen
O D) Helium and neon
Answers
Answered by
0
Answer:
a. hydrogen and helium
Explanation:
because we can have them in liquid form also
Answered by
2
Answer:
D ) Helium and neon is a answer
Similar questions