1. What are the four rules in writing the symbol of chemical elements in the Periodic Table of Elements
2. Give 5 examples of elements for each rule you identified.
3. What are the characteristics of compounds?
4. Give the chemical formula of the following common compounds.
water
salt
baking soda
hydrochloric acid
sulfuric acid
Answers & Comments
Verified answer
Answer:
2.H-hidrogen,CA-calium,P-phosphorus, H-helium, L-lodine