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gcarr-periodicity
gcarr-Review of periods, groups, and trends.
Question | Answer |
---|---|
The scientist that produced the first widely accepted periodic table. | Dmitri Mendeleev |
Chemical and physical properties repeat themselves in a pattern when elements are arranged in order of increasing atomic number. | Periodic law |
Metals located in the d-block | Transition metals |
Elements that are generally shiny, solid at room temperature, and conduct electricity. | Metals |
Shininess | Luster |
Dents instead of shatters | Malleable |
Can be pulled into a wire | Ductile |
Alkali metals | Group I |
Alkaline earth metals | Group II |
Inner transition metals/ Rare earths | Metals located in the f-block |
Nonmetals | Elements that are gases or dull, brittle solids and do not conduct heat or electricity. |
Halogens | Group VII |
Noble Gases | Group VIII |
Metalloids | Elements with physical characteristics of both metals and nonmetals. |
Valence electrons | The electrons in the outside shell of the atom |
Atomic radius | Half of the distance between two identical atoms bonded together. |
Ionization energy | The amount of energy required to remove an electron from a neutral atom. |
Ion | An atom that has gained or lost one or more electrons. |
Octet rule | Atoms gain, lose, or share electrons in order to acquire eight valence electrons. |
Electronegativity | The ability of an atom to attract an electron in a bond. |
Alloy | A mixture of two or more metals. |