Statistics for Chemical elements by hints

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Hint	Answer	% Correct
Noble gas, commonly used for balloons	Helium	100%
The most present element in the air	Nitrogen	100%
The non-metallic component of table salt	Chlorine	85%
Halogen, usually present in the toothpaste	Fluorine	85%
Highly valuable soft metal of yellow or orange color	Gold	85%
Makes ammonia ions with the above	Hydrogen	85%
Shiny, malleable, and reactive metal used for the batteries	Lithium	77%
The first element in the group of chalcogens	Oxygen	62%
Refractory metal, also known as wolfram	Tungsten	62%
Actinide, was used as a core for "Fat Man"	Plutonium	54%
Radioactive and highly-reactive metal previously used in cosmetics	Radium	54%
The soundalike of the above, odorless gas	Radon	54%
Shiny metal of gray color, main component of pewter	Tin	54%
Brittle poisonous metalloid, used in pesticides	Arsenic	46%
One of the two elements that is naturally a liquid (not mercury)	Bromine	46%
Lanthanide, named after Stockholm	Holmium	31%
Alexander Litvinenko and Yasser Arafat were poisoned with this radioactive element	Polonium	31%
The lightest element with no stable isotopes	Technetium	23%
The rarest naturally occurring element	Astatine	15%
Malleable corrosion-resistant metal, frequently used to make protheses	Zirconium	15%