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PT and Trends Reid Answer Key

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Periodic Table
#1 The scientists credited with organizing the first periodic table by atomic mass. Mendeleev
#2 Organized the periodic table according to atomic number. Moseley
#3 The s and p blocks make up which group of elements on the periodic table? representative group
#4 This group of elements can have multiple charges when bonding with non-metals. transition metals
#5 This group of elements are synthetic and radioactive. actinides
Metals/Non-metals/Metalloids
#1 List the characteristics of non-metals dull, non-conductors, insulators, brittle
#2 List the characteristics of metals. shiny (luster), ductile, malleable, conductors
#3 Metalloids are most commonly used as _____________ in LEDs and computers. semiconductors
#4 What is the trend of metallic properties going left to right across the periodic table? increases
#5 This group of metals are highly reactive. alkali metals
Trends
#1 States that the chemical and physical properties of elements repeat in a periodic way when the elements are arranged by increasing atomic number. Periodic Law
#2 Cations tend to lose electrons. How do they compare in size to their parent atom? smaller
#3 Which halogen has the least attraction for electrons? F Cl Br I Iodine
#4 The energy required to remove one electron from a neutral atom of an element. ionization energy
#5 Describe the trend of reactivity as you move down a group. increases
Element Knowledge
#1 The least electronegative element. francium
#2 The most reactive halogen fluorine
#3 The least reactive alkali metal. lithium
#4 The group of elements on the periodic table that require the most ionization energy. noble gases
#5 Elements lying along the zigzag line on the periodic table. metalloids
Mix n Match
#1 The lessening of attractive electrostatic charge difference between nuclear protons and valence electrons by partially or fully filled inner shells. shielding effect
#2 What is the trend for melting and boiling point on the periodic table? increases as you move toward the middle
#3 Which halogen is a liquid at room temperature? bromine
#4 The only metal that is a liquid at room temperature. mercury
#5 A horizontal row on the periodic table. period
Final Question