chapter 1: lesson 3\nperiodic table:\nmetal:\nductility:\nmalleability:\nnonmetal:\nmetalloid:\nrecord your…

Brief Explanations:

Elements are identified by their atomic number (number of protons in the nucleus). Metals are elements that are typically good conductors of heat and electricity, have high melting - points, and exhibit properties like ductility (ability to be drawn into wires) and malleability (ability to be hammered into thin sheets). Non - metals are generally poor conductors and have different physical and chemical properties. Metalloids have properties intermediate between metals and non - metals. These properties are crucial in modern life. For example, metals are used in construction, electronics, and transportation due to their strength and conductivity. Non - metals are used in various chemical processes and as insulators. Metalloids are important in the semiconductor industry which is fundamental to modern electronics.

Answer:

Periodic table: A tabular display of chemical elements arranged by atomic number, electron configuration, and recurring chemical properties. Metal: An element that is typically a good conductor of heat and electricity, and is malleable and ductile. Ductility: The ability of a material (usually a metal) to be drawn out into a wire. Malleability: The ability of a material (usually a metal) to be hammered or pressed into a thin sheet. Nonmetal: An element that is a poor conductor of heat and electricity and does not exhibit the properties of metals. Metalloid: An element that has properties intermediate between those of metals and non - metals.