Periodic Table Basics

• A method of arranging elements based on their atomic numbers and chemical properties (correct)
• A method of arranging elements based on their atomic masses and physical properties
• A method of arranging elements based on their positions in the Earth's crust
• A method of arranging elements based on their reactivity and color

• It provides a framework for understanding the relationships between elements and predicting their properties (correct)
• It determines the physical state of elements at room temperature
• It organizes elements based on their color and density
• It dictates the reactivity of elements in nature

• In order of increasing reactivity
• In order of decreasing atomic mass
• In order of decreasing density
• In order of increasing atomic number (correct)