Elements that Don't end in -ium

There are 36 Elements on the Periodic table that do not end in -ium. Can you name them all?
Quiz by limewell
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Last updated: March 31, 2013
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First submittedMarch 29, 2013
Times taken355
Average score72.2%
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Answer
Hydrogen
Boron
Carbon
Nitrogen
Oxygen
Flourine
Neon
Silicon
Phosphorus
Sulfur
Chlorine
Argon
Manganese
Iron
Cobalt
Nickel
Copper
Zinc
Answer
Arsenic
Bromine
Krypton
Molybdenum
Silver
Tin
Antimony
Iodine
Xenon
Tantalum
Tungsten
Platinum
Gold
Mercury
Lead
Bismuth
Astatine
Radon
+2
Level 70
Mar 30, 2013
you forgot platinum
+2
Level 24
Mar 31, 2013
Platinum?
+1
Level 44
Mar 31, 2013
Cool, Thanks. I added in Platinum
+2
Level 20
Apr 14, 2013
Aluminum
+1
Level 20
Apr 14, 2013
Never mind, some people say Aluminium, my bad.
+2
Level 62
Aug 21, 2013
You've spelt fluorine wrong :)
+1
Level 48
May 9, 2014
Lanthanum?
+1
Level 44
May 10, 2014
Lanthanum does not end in -ium, but -um. there is a difference there.
+4
Level 21
Jul 4, 2014
Lanthanum should be included. Also, you have mis-spelt Fluorine.
+4
Level 84
Dec 1, 2022
Add Lanthanum, Tennessine, and Oganesson

Flourine -> Fluorine