Exploring the Periodic Table: A Chemistry Webquest

Periodic Table Webquest Chemistry Every element in the second period has Every element in the second period has 2 orbital shells for its electron _ orbital shells for its _. Groups are _ that run from _ to _. Groups are columns that run from top to bottom The elements of a group have the The elements of a group have the same number of valence electrons in their outer same number of _ in their _ _. shell. Every element in group 1 has _ one and two electrons in their outer shell and every element in group 2 has _ electrons in their outer shell. The most common isotope of a neutron hydrogen does not have Atomic hydrogen always exists as a _ gas in nature. Although helium only has _ electrons 2 electrons & grouped with those that have eight. in its out shell, it is grouped with elements that have _. Alkali Metals What is the group number of Alkali 1 Metals? Are Alkali Metals reactive? Yes? Do AM occur freely in nature? No How many electrons are in the 1 outershell of AM? What are the characteristics of ALL malleable, ductile, and good conductors of heat and electricity metals Are AM hard or soft? soft What are the two most reactive cesium and francium elements in AM? What happens if AM are exposed to They explode water? Group number of Alkaline Earth Metals 2 Are AEM reactive Yes Do AEM occur freely in nature No AEM electrons in outer shell # 2 Alkaline Earth Metals Transition Metals How many elements are in the TM group? 38 Group numbers of TM? 3-12 What are valence electrons? Electrons used to combine with other elements Because valence electrons are present shell, oxidation stares in more than one _, transition metals often exhibit several common __. TM that produce a magnetic field iron, cobalt, nickel How many elements are in the group Seven Other Metals? What are the group numbers of OM? 13-15 How are OM similar to TM? Other metals are ductile and malleable How are OM different to TM? Other metals don't exhibit variable oxidation states and their valence electrons are only present in an outer shell OM physical traits Solid, opaque, and high-density OM oxidation numbers +-3, +-4, and -3 Metalloids Metalloids have properties of both _ metals and non-metals and __ Semiconductor means the ability to carry an electric charge under special charge Silicon and germanium are semi-conductors The semi-conductor property makes computers and calculators metalloids useful in _ and _ Nonmetals Non metal group numbers 14 through 16 Four characteristics of ALL NM unable to conduct electricity, can't heat very well, not ductile, very brittle NM exist in two states of matter at Gas and solid room temperature NM have no _ and do not __ metallic luster and do not reflect light Oxidation numbers of NM +-4, -3, and -2 Halogens Other Metals Halogen group number Five Halogens are _ non metals Halogens are __ salt-formers Compounds containing halogens are salts called Halogens have _ electrons in its outer 7 shell Oxidation number of Halogens -1 Halogens exist in three states of solids, liquid, and gas matter at room temperature: Noble Gases NG group number 6 NG are inert (stable) Why are NG inert they can't readily form compounds due to their oxidation #'s Noble gases oxidation number -0 Lanthanide and Actinide How many rare earth elements are 30 there? Define trans-uranium synthetic or man-made The rare earth metals are found in 3, 6 and 7 group _ and periods _ and _ Periods are _ that run from _ to _ Periods are rows that run from left to right. Every element in the first period has _ Every element in the first period has 1 orbital shell for its electrons. orbital shell for its _. https://quizlet.com/435976786/periodic-table-webquest-chemistry-flash-cards/ 4/4