Answer:
Noble gas, any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).
Carbon Dioxide is a compound gas
Carbon Dioxide is a gas produced by burning carbon and organic compounds and by respiration.
Answer:
Ansmure two
ismirgonewart
are you
and de band
what is true beauty and the best
Explanation:
itu diatas jawaban nya
Dobereiner could find only three triads; . i.e total of 9 elements only. However the total number of elements were more than that of those encompassed in Dobereiner's Triad. Thus, Dobereiner's could not be classify most of the elements known at that time
