Answer: oxygen, hydrogen, sodium, chlorine, lead, iron. Examples of compounds include water ( or hydrogen oxide ) H2O; and Sodium Chloride, NaCl.
Explanation: plz mark brainest
Answer: H Hydrogen, Ca Calcium , B Boron , C Carbon
Explanation: Elements are pure substances that is composed primarily of only one type of atom. Elements can be classified into metals, nonmetals and metalloids.