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Which element is the lightest and most common in the universe?	Hydrogen		chem-element-facts
Which gas makes up about 78% of Earth's air?	Nitrogen		chem-element-facts
Which gas do we breathe in to live, about 21% of the air?	Oxygen		chem-element-facts
Which element is the basis of all known life?	Carbon		chem-element-facts
Which two forms of pure carbon are very different: one soft and one super hard?	Graphite and diamond		chem-element-facts
Which noble gas is used to fill party balloons that float?	Helium		chem-element-facts
Which element is the only metal that is liquid at room temperature?	Mercury		chem-element-facts
Which element has the symbol Au and is a shiny yellow metal?	Gold		chem-element-facts
Which metal is used in most electrical wires?	Copper		chem-element-facts
Which metal is the main ingredient of steel?	Iron		chem-element-facts
Which element do bones and teeth need, found in milk?	Calcium		chem-element-facts
Which element is in table salt along with chlorine?	Sodium		chem-element-facts
Which gas is used to disinfect swimming pools?	Chlorine		chem-element-facts
Which noble gas glows red-orange in signs?	Neon		chem-element-facts
Which element is the most common metal in Earth's crust?	Aluminum		chem-element-facts
Which element is the second most common in Earth's crust, found in sand and glass?	Silicon		chem-element-facts
Which element is used in computer chips?	Silicon		chem-element-facts
Which metal is a good conductor and is used for jewelry and mirrors, symbol Ag?	Silver		chem-element-facts
Which element makes matches burn and is found in DNA?	Phosphorus		chem-element-facts
Which yellow solid smells like rotten eggs in some compounds?	Sulfur		chem-element-facts
Which element helps prevent tooth decay in toothpaste?	Fluorine, as fluoride		chem-element-facts
Which element is needed in the thyroid gland and is added to table salt?	Iodine		chem-element-facts
Which element is at the center of the Sun's fuel and fuses into helium?	Hydrogen		chem-element-facts
Which element is the second most abundant in the universe?	Helium		chem-element-facts
Which element is the hardest natural material (a form of carbon)?	Diamond, which is carbon		chem-element-facts
Which metal is used to coat steel to stop rust, as in galvanizing?	Zinc		chem-element-facts
Which heavy, soft metal is used in car batteries?	Lead		chem-element-facts
Which element has the highest atomic number that occurs naturally in large amounts in Earth's crust?	Uranium (92)		chem-element-facts
Which element is named after the Sun's Greek name Helios?	Helium		chem-element-facts
Which metal is attracted to magnets and is the core of Earth?	Iron		chem-element-facts
Which light metal is used for airplane parts and soda cans?	Aluminum		chem-element-facts
Which bright white metal burns with a dazzling flame and is in fireworks and flares?	Magnesium		chem-element-facts
Which metal is soft enough to cut with a knife and reacts violently with water?	Sodium		chem-element-facts
Which element is the N in fertilizer labels like N-P-K?	Nitrogen		chem-element-facts
Which metal is mixed with copper to make bronze?	Tin		chem-element-facts
Which element is a purple-black solid that turns into purple vapor when heated?	Iodine		chem-element-facts
Which noble gas is used in light bulbs to protect the filament?	Argon		chem-element-facts
Which element is named for Poland, the homeland of Marie Curie?	Polonium		chem-element-facts
Which element was named after Marie and Pierre Curie?	Curium		chem-element-facts
Which element is named after Albert Einstein?	Einsteinium		chem-element-facts
Which element is named after Dmitri Mendeleev?	Mendelevium		chem-element-facts
Which element is named after Niels Bohr?	Bohrium		chem-element-facts
Which element is named after planet Neptune?	Neptunium		chem-element-facts
Which element is named after planet Uranus?	Uranium		chem-element-facts
Which element is named after the Greek word for "green"?	Chlorine (from chloros)		chem-element-facts
Which element is named after the state of California?	Californium		chem-element-facts
Which element is named after Selene, the Greek moon goddess?	Selenium		chem-element-facts
Which element is used to make the strongest magnets, the neodymium kind?	Neodymium		chem-element-facts
Which element is the most electronegative?	Fluorine		chem-element-facts
Which element is a green poisonous gas used long ago and in swimming pools?	Chlorine		chem-element-facts
Which metal is the best conductor of electricity?	Silver		chem-element-facts
Which element makes up the largest part of the human body by mass?	Oxygen		chem-element-facts
What is the most abundant element in the human body by number of atoms?	Hydrogen		chem-element-facts
Which element is liquid at room temperature besides mercury, a reddish-brown liquid?	Bromine		chem-element-facts
Which element has the symbol Pt and is very valuable and does not tarnish?	Platinum		chem-element-facts
Which metal has the highest melting point of all metals?	Tungsten		chem-element-facts
Which element is used in the filaments of old light bulbs?	Tungsten		chem-element-facts
Which element is a radioactive gas found in some basements?	Radon		chem-element-facts
Which element is used in nuclear power plants as fuel?	Uranium		chem-element-facts
Which element is the first in the noble gas family?	Helium		chem-element-facts
Which element is a shiny gray solid that is a metalloid and used in solar panels?	Silicon		chem-element-facts
Which element makes the flame of some fireworks red?	Strontium		chem-element-facts
Which element makes the flame of some fireworks green?	Barium		chem-element-facts
Which element makes the flame of some fireworks blue?	Copper		chem-element-facts
Which element is in chlorophyll at the center of the molecule?	Magnesium		chem-element-facts
Which element is at the center of hemoglobin and helps carry oxygen in blood?	Iron		chem-element-facts