About 1 percent of the atmosphere (5 letters)

{ Answer }

ARGON

{ Related Clues }

Most common inert gas in the atmosphere
Fluorescent-lamp filler
Composition of some plasmas
Gaseous element in our atmosphere
Scientific discovery of 1894
Atomic number 18
Light bulb gas
Vacuum tube filler
Element in radio tubes
.93% of the earth's atmosphere
Part of the atmosphere
It's inert
Laser gas
Odorless gas
About 1% of the atmosphere
Inert element
Inert gas
About 1% of the Earth's atmosphere
Fluorescent lamp filler
A gaseous element
Light-bulb gas
Radio tube gas
Gas in a vacuum tube

{ Tags }

about, argon, atmosphere, bulb, common, earths, element, filler, fluorescent, gas, gaseous, inert, light, most, number, percent, radio, tube, vacuum, 1, 18

{ Notes }

The answer ARGON is common and appears about once every 325 puzzles.

{ Definition }

ARGON as a noun:

1. (argon, Ar, atomic number 18) = a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere