Chapter 7- Lesson 3 Notes Non Metals and Metalloids
Chapter 7- Lesson 3 Notes Non Metals and Metalloids
Lesson 3 has been discussed and reviewed. Students should have 3 questions on each of the note pages. For periods 1,3,5,7- notes go on NB 44 and 46. Vocabulary from pg 248 goes on NB 43 with a Bellringer. The NonMetals packet will go on NB 45. For periods 2 and 4- notes go
on NB 42 and 44. Vocabulary from pg 248 goes on NB 41 with a Bellringer. The NonMetals packet will go on NB 43.
The Elements of Life
Lesson 3-1
More than 96 percent of the mass of the human body comes from four nonmetals? oxygen, carbon, hydrogen, and nitrogen.
The Elements of Life (cont.)
Lesson 3-1
? Nonmetals are elements that have no metallic properties.
? The four elements that make up most of the human body, along with phosphorus and sulfur, are the six elements in proteins, fats, nucleic acids, and other large molecules in your body and in all other living things.
How are nonmetals different from
Lesson 3-2metals?
? Nonmetals have properties that are different from those of metals.
? Many nonmetals are gases at room temperature and those that are solid at room temperature have a dull surface, which means they have no luster.
? Because nonmetals are poor conductors of electricity and thermal energy, they are good insulators.
Lesson 3-2 Phosphorus and carbon are dull, brittle solids that do not conduct thermal energy or electricity.
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