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CHEMICAL INTERACTIONS INVESTIGATION 2: ELEMENTS. KEY CONCEPTS. AN ELEMENT IS A BASIC SUBSTANCE THAT CANNOT BE BROKEN INTO SIMPLER SUBSTANCES DURING CHEMICAL INTERACTIONS. GOLD = Au. THERE ARE 90 NATURALLY OCCURRING ELEMENTS ON EARTH.
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KEY CONCEPTS • AN ELEMENT IS A BASIC SUBSTANCE THAT CANNOT BE BROKEN INTO SIMPLER SUBSTANCES DURING CHEMICAL INTERACTIONS. • GOLD = Au • THERE ARE 90NATURALLY OCCURRING ELEMENTS ON EARTH. • ELEMENTS COMBINE TO MAKE ALL THE SUBSTANCES ON EARTH • EACH ELEMENT HAS A NAME AND REPRESENTED BY A 1 OR 2 LETTER SYMBOL
KEY CONCEPTS • DIFFERENT LOCATIONS IN THE UNIVERSE HAVE DIFFERENT AMOUNTS OF ELEMENTS (EARTH HAS A LOT!) • ELEMENTS COMBINE TO MAKE ALL THE SUBSTANCES ON EARTH • ALL COMMON MATTER IS MADE OF ELEMENTS
KEY CONCEPTS • THE PERIODIC TABLE OF THE ELEMENTS DISPLAYS ALL THE NATURALLY OCCURRING AND SYNTHESIZED ELEMENTS. • EACH BOX HAS A DIFFERENT ELEMENT. • ELEMENTS ARE THE BUILDING BLOCKS OF MATTER. • EVERYTHING ON EARTH THAT HAS MASS & TAKES UP SPACE IS MADE OF COMBINATIONS OF ELEMENTS.