The gas neon
the current eon period is pleistocene period
A gigaannum, usual symbol Ga, is a unit of time equal to oneAnother word more narrowly used to mean a billion years is "aeon" (eon).
eon is stable in nature. It is an inert element.
The element with the word "hen" in its name is hafnium. Hafnium is a metallic chemical element with symbol Hf and atomic number 72.
eon
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An example of eon in a sentence is ' Dinosaurs existed many eons ago on planet Earth.' The meaning of the word 'eon' is a long time ago.
The opposite meaning for eon is a short period of time which can be calculated or measured.Note: The answer is based on the assumption that the questioner asked the antonym for the word eon meaning immeasurably long period of time.
It comes from a Germanic word meaning "weight".
The element Neptunium has a word in its name ("Neptune") that refers to a planet discovered long ago, and the element itself was discovered around the same time.
Eon