3 page REMEDIAL FIRST QUARTER LESSON I Directions: Identify the following substances based on the composition of their particles, write A if it is an element and B if a compound. B 1. Mercury (Hg)is a metallic substance composed of mercury atom 2. Diamond (C) is a pure form of carbon were carbon atoms are arranged in a crystal fattice structure. 3. Water (H2O) consists of hydrogen atoms bonded with oxygen atom 4. fron (Fe) is a metallic substance composed of iron atoms. 5. Sodium Chloride (NaCl) or table salt, it is made of sodium ions and chloride ions arranged in crystal la structure. 6. Gold (Ag) is a pure substance consisting of gold atoms. 7. Aluminum (Al) is a pure substance consists of aluminum atom comprising two nitrogen atoms bonde together 8. Magnesium Chloride (MgCl2) is a pure substance composed of magnesium atom and two chlorine a