Term

Which of the following statements is FALSE according to Dalton's Atomic Theory? a. Atoms combine in simple whole-number ratios to form compounds. b. All atoms of chlorine have identical properties that distinguish them from other elements. c. One carbon atom will combine with one oxygen atom to form a molecule of carbon monoxide. d. Atoms of sodium do not change into another element during a chemical reaction with chlorine. e. An atom of nitrogen can be broken down into smaller particles that will still have the unique properties of nitrogen

Definition

E- Atoms cannot be broken down

Term

Which of the following statements about subatomic particles is TRUE? a. Neutral atom contains the same number of protons and electrons. b. Protons have about the same mass as electrons. c. Electrons make up most of the mass of an atom. d. Protons and neutrons have opposite, but equal in magnitude, charges. e. Neutrons and electrons are found in the nucleus of an atom

Definition

A- A neutral atom has no overall electrical charge & Neutral atom → protons = electrons

Term

Which of the following is a metal? a. chlorine b. mercury c. iodine d. carbon e. silicon

Definition

B- Mercury (Hg)