which atmospheric gas is the lightest because it only has one proton and one electron and is made of only…
which atmospheric gas is the lightest because it only has one proton and one electron and is made of only one element? ozone argon hydrogen methane
Answer
Answer:
C. hydrogen
Brief Explanations:
Hydrogen has one proton and one electron and is a single - element gas, making it the lightest among common atmospheric gases. Ozone ($O_3$), argon (Ar), and methane ($CH_4$) are heavier.