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The Periodic Table

This is a review over chapter 6 of the person chemistry textbook

Question/ termAnswer/definition
Periodic law When elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties.
Metals Generally good conductors of heat and electric current
Nonmetals Poor conductors of heat and electric current.
metaloid Generally has properties of metals and nonmetals
Alkali Metals The elements in Group 1A
Alkaline Earth Metals The elements in Group 2A
Halogens The nonmetals of group 7A
Noble gasses The elements in which the highest occupied s and p sublevels are filled.
Representative Elements The highest occupied s and p sublevels are partially filled.
Transition metals The highest occupied s sublevel and a nearby d sublevel contain electrons
Inner Transition Metals The highest occupied s sublevel and a nearby f sublevel contain electrons
Atomic Radius One half of the distance between the nuclei of two atoms of the same element when the atoms are joined
Electrogravity The ability of an atom of an element to attract electrons when the atom is in a compound
ions an atom or group of atoms that have a positive or negative charge
ionization energy energy required to remove an electron from an atom
cation A positively charged ion
anion A negatively charged ion
Properties of elements allowed chemists to Sort them into groups
Mendeleev arranged the elements in his periodic table in order of increasing atomic mass
Elements are arranged in order of increasing atomic number
In general, atoms increase from top to bottom within a group
In general, atoms decrease from left to right across a period
In general, electronegativity values decrease top to bottom
In general, electronegativity values increase from left to right across a period
Created by: hihello2007
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