Question

1. the atomic number of an element is equal to: a. the number of protons b. the number of neutrons c. the atomic mass d. the number of isotopes 6. what type of element is located on the left side of the periodic table a. nonmetals b. metalloids c. noble gases d. metals

Explanation:

• For question 5, by definition, the atomic number of an element is the number of protons in the nucleus of its atom.
• For question 6, metals are located on the left - hand side of the periodic table. Non - metals are on the right, metalloids are in a diagonal region, and noble gases are in the far - right column.

Answer:

1. A. The number of protons
2. D. Metals