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ChemistryReviewCh.6

How are elements arranged in the modern periodic table? in order of increasing atomic #
How did Mendeleev arrange his periodic table? in order of increasing atomic mass
What is the charge of a cation and an anion? cation (+) lose electrons anion (-) gains electrons
What subatomic particle plays the greatest part in determining the properties of the element? electrons
How do electronegativity, 1st ionization energy, and atomic radius trend on the periodic table? atomic radius decreases as you go down, electroneg. and ionization increases as you go up; electroneg. and 1st ionization increase as you go to the right, atomic radius decreases as you go to the left
What do noble gas electron configuration have in common? in the highest occupied energy level the s and p sublevels are completely filled
What is a group and what is a period on the periodic table and what do they tell us? group-moves down the periodic table;elements in the same group have similar properties period: across the periodic table; elements in the same period have similar energy
What information is included in a periodic table element block? Element name and symbol, atomic number, and atomic mass
What are the representative elements and what best describes them? Group A elements;they display a wide range of properties including metals, nonmetals, metalloids, and all 3 states of matter:solid, liquid, and gas
What is an alkali metal? group 1A
What is an alkaline earth metal? Group 2A
What is a transition metal? All Group B elements
What is a halogen? Group 7A
What is a noble gas? Group 8A
What is a metal? element to left of stairstep on periodic table
What is a nonmetal? elements to the right of stairstep on periodic table
What is a metalloid? elements on periodic table
Write an electron configuration of an element. 1s(2)2s(2)2p(6)3s(2)3p(6)3d(10)4s(2)4p(3)
What is electronegativity? ability of an atom to attract electrons from another atom
What is ionization energy? energy required to remove an electron from an atom
What is an atomic radius? half the distance between nuclei of 2 atoms when they are joined
What is periodic law? a repetition of properties occur when elements are arranged by increasing atomic number
What is atomic mass? basis of Mendeleev's arrangement of the periodic table
Created by: maryscamardo
 

 



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