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PS 04 Periodic Tabl

8th Grade 2022

QuestionAnswer
The periodic table is arranged according to ___ ___, which is the number of protons. Atomic number (1-118)
The periodic table has 7 ___ that run horizontal (side to side) and determine the number of electron shells an atom has. Periods
An element which shares similar properties between metals and nonmetals, and is considered a semi-conductor is called a ________. Metalloid
Metals are found to the _______ of the staircase on the periodic table? Left
Nonmetals are found to the _______ of the staircase on the periodic table? Right
Metalloids are the elements are found ____ the staircase on the periodic table? On
What are the rules for the max number of electrons that can fit on the 1st, 2nd, and 3rd energy levels for atoms? 1st Energy Level - 2 Max Electrons, 2nd Energy Level - 8 Max Electrons, 3rd Energy Level - 18 Max Electrons
The periodic table has 18 ___ that run vertical (up and down) and determine the chemical behavior or reactivity of elements. Groups or Families
Elements in the same group or family have the same number of ___, outside electrons involved in reactions and bonding. Valence
How do you count the number of valence (outer electrons) for an element? According to the family: ex. Family 1 = 1 Valence, Family 2 = 2 Valence, Family 13 = 3 Valence
An element which has luster (shiny), malleable (bendable), and is a good conductor of heat and electricity is called a ______. Metal
An element which is dull, rigid, brittle, and is a poor conductor (insulator) of heat and electricity is called a _____. Nonmetal
A transfer of electrons from a metal to a nonmetal. Ionic bond
A sharing of electrons between two nonmetals. Covalent bond
Metal elements in family 1 want to lose 1 valence to reach octet (losing the outer energy level). They react very quickly to lose 1 electron to another atom. Alkali Metal
How many valence (outer electrons) do all atoms want to have? Atoms will gain or lose electrons to reach this number. Octet Rule (8 Valence)
Nonmetal elements in family 17 want to gain 1 more valence to reach octet. They react very quickly to take this 1 electron from another atom. Halogen
Nonmetal elements in family 18 already have 8 valence (octet) and do not want to change or react with any other element on the periodic table. Noble Gas
Created by: Mr. Dornfeld
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