Test Objectives for Unit 8: The Periodic Table



Test Objectives: The Periodic Table

• List the elements that are liquids & gases at STP

• List the 7 diatomic elements

• List the properties of metals, non-metals & metalloids

• Identify an element as a metal, non-metal or metalloid based upon its properties

• Memorize: “Metals are Losers; Non-metals are Winners” and be able to explain what it means

• Predict the size & charge of ions relative to the parent atom

• Define the term allotrope and list some common examples (for Carbon & Oxygen)

• Know how the modern periodic table was developed

• Identify the common groups on the PT: alkali metals, alkaline earth metals, transition metals, inner transition metals, halogens & noble gases

• Define the term “metallic character”

• Identify the most active metal

• Explain how the reactivity of non-metals is defined

• Identify the most active non-metal

• Define the terms electronegativity & ionization energy

• Explain how the atomic radius, ionic radius, electronegativity, first ionization energy & metallic or non-metallic properties change as you go down a group on the PT

• Explain how the atomic radius, ionic radius, electronegativity, first ionization energy & metallic or non-metallic properties change as you go across a period on the PT

• Correlate changes in atomic radii with changes in ionization energy & changes in electronegativity

• Recognize that elements in the same group have the same number of valence electrons & therefore similar chemical properties

• Correlate changes in the number of valence electrons with typical bonding behavior

• Predict the properties of the A-group elements from the positions of the elements in the PT

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