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Elements and Compounds

Elements and Compounds. By Kei and Atsuhiro. Elements. Elements are substances that are made up of only one kind of atom. E.g. Hydrogen (H 2 ) You can find elements on the periodic table!. Only one kind of atom. Compounds. Compounds are substances made up of two or more kinds of atoms.

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Elements and Compounds

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  1. Elements and Compounds By Kei and Atsuhiro

  2. Elements • Elements are substances that are made up of only one kind of atom. • E.g. Hydrogen (H2) • You can find elements on the periodic table! Only one kind of atom

  3. Compounds • Compounds are substances made up of two or more kinds of atoms. • E.g. Water (H2O) • Compounds can be separated by chemical reactions into elements. Water is made up of two kinds of atoms (hydrogen and oxygen).

  4. Examples of Usefulness • We will be able to know what we are touching, eating, breathing, etc… • We can make chemicals like tooth paste, salt, water by doing chemical reactions. • You will have a better understanding of the world and what it’s made up of.

  5. More Examples • Chlorine can be used for Paper products. • Manganese is used in steel alloys to increase many favorable characteristics such as strength, hardness, and durability. In fact steel can not be produced without manganese.  • Manganese us also used to color class and amethyst color.

  6. Questions!! • Say whether the following pictures are elements or compounds.

  7. a. b. d. c.

  8. 2. Name 5 elements and 5 compounds that you see everyday. 3. Name the substance that cannot be broken down into anything simpler. 4. Pick a common element and name 5 uses for it.

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