1)1-helium 2-neon 3-argon 4-krypton 5-zenon2)colouless n transparent3)As the atomic number decrease, the gas get denser.
The names of Noble gases are given correctly except xenon. Physical property mentioned: densityDensity of noble gases increase when going down the group!
1)1-helium
ReplyDelete2-neon
3-argon
4-krypton
5-zenon
2)colouless n transparent
3)As the atomic number decrease, the gas get denser.
The names of Noble gases are given correctly except xenon.
ReplyDeletePhysical property mentioned: density
Density of noble gases increase when going down the group!