Elements and Symbols
What is the symbol for Gold?
Au
What is the main ingredient in table salt?
NaCl (Sodium Chloride)
What is the lightest element on the periodic table?
Hydrogen
Which element has the symbol "O"?
Oxygen
Which chemical is commonly used in baking to make dough rise?
Baking soda (Sodium bicarbonate) - NaHCO3
Which scientist developed the periodic table?
Dimitri Mendeleev
Known for its reactive nature, this alkali metal is essential in the human diet, often found in table salt.
Sodium (Na)
Which chemical compound is used in bleach and disinfectants?
Sodium hypochlorite (NaClO)
What is the name given to the elements in the periodic table that have properties of both metals and non-metals?
Metalloids
This liquid metal is used in thermometers and is highly toxic. What is the element and its symbol?
Mercury - Hg
Which gas is commonly used to carbonate soft drinks?
CO2 - Carbon Dioxide
Elements in this group of the periodic table are known for being unreactive.
Noble gases
This heavy metal was once widely used in pipes and paints but is now known for its toxicity. Its symbol is "Pb."
Lead
What is the main chemical component in vinegar?
Acetic Acid
How many elements are in the periodic table?
118