Page 45 - Curriculum Visions Dynamic Book
P. 45
NeonA colourless gas, chemical symbol Ne
Has no smell
Glows reddish orange when excited electrically
Inert
Has no taste
Xenon
Atomic number 10, atomic weight about 20
Argon
A colourless gas, chemical symbol Ar
Has no smell
Has no taste
Inert
Glows blue when excited electrically
Has no taste
Krypton
Nontoxic
Radon
Has no smell
Has no taste
Inert
Nontoxic
Radioactive atomic weight about 222
Atomic number 18, atomic weight about 40
A colourless gas, chemical symbol Ra
A colourless gas, chemical symbol Kr
Atomic number 36, atomic weight about 84
Has no smell
Has no taste
Inert
A colourless gas, chemical symbol Xe
Has no Inert smell
Atomic number 54, atomic weight about 131
Atomic number 86,
