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Chapter 19 Review

Physical Science

Question/TermAnswer/Definition
Alkaline Earth Metals Elements in Group 2.
Alkali Metals Elements in Group 1.
Diatomic Molecule Consists of two atoms of the same element.
Allotrope Different forms of same element but with different molecular structures.
Noble Gases Elements in Group 18, all are stable because they have a full outer energy level. Do not form compounds because they are isolated atoms and do not react the same.
Synthetic Not naturally occurring.
Halogens Elements in Group 17.
Transuranium Elements Elements that have more than 92 protons.
Radioactive Elements Elements that give off particles and energy.
Semiconductors Substances that conduct electricity under certain conditions.
Transition Elements Elements in Groups 3-12.
Metals Elements that have luster, are good conductors, and solids at room temperature.
Nonmetals Elements that are gases or brittle solids at room temperature, not good conductors, not shiny.
Metalloids Elements having properties of metals and nonmetals.
Metallic Bonding Positively charged metallic ions surrounded by electrons.
Boron Group Elements in Group 13.
Carbon Group Elements in Group 14.
Nitrogen Group Elements in Group 15.
Oxygen Group Elements in Group 17.
Inner Transition Elements Lanthanides and Actinides.
Salts Formed when halogens combine with metals.
Created by: Destroy