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Chapter 1- Section 3 Periodic Table Introduction

Chapter 1- Section 3 Periodic Table Introduction. The arrangement of the _________ show how ______________________ can be related. The arrangement shows the relationship between _______________ and __________________ .

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Chapter 1- Section 3 Periodic Table Introduction

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  1. Chapter 1- Section 3Periodic Table Introduction • The arrangement of the _________ show how ______________________can be related. • The arrangement shows the relationship between _______________and __________________ . • The elements are arranged in order of increasing __________reading from ____________and from __________________ . • Atomic number is the number of ___________in the nucleus of the atoms of an element.

  2. Groups • A group (or _________) is a ____________on the PT. • Each group has the same number of _____________________ • Valence means _____________electrons. • This gives the group similar ________properties • The groups are numbered from ___ to ___

  3. More About Groups • The group number is the same as the __________________________ for the neutral atom in that group for the left side, and the group number minus 10 (_______________) for the right side. • Example: carbon is in group ___ and has ___ valence electrons • Usually the noble gases are thought of as having ___ valence electrons. This means the outermost energy level is ____________. This is believed to be why they have very, very little _____________________.

  4. Periods • A period is a ______ in the periodic table • Periods are numbered _______ • Each period corresponds to a new _________ ____________ . • The first element in each period has only ____ __________ in its outer shell • The second-to-last element in the period only ________ one more electron to fill the ________

  5. Periodicity • Periodicity is the regular ________________ according to the arrangement of ___________in the periodic table. • Chemical and physical properties of elements show periodicity if the elements are arranged in order of ________________________. • This is the modern “_____________”.

  6. Metals • Found ________________of the PT • Good conductor of __________________ • Most metals are ________ at room temperature • Most have the property of ___________(can be hammered or rolled into thin sheets) • Most are __________ (can be drawn into a wire) • Metals have _________________(the ability to resist breaking when pulled)

  7. More About Metals • Most metals have ______ (tend to be shiny) • Metals can also have diverse properties • Mercury is a _______ at room temperature • Group one metals are very ______ while others are __________

  8. Nonmetals • _________side of PT. • ______ conductor of heat and electricity • Many are ________ at room temperature • One nonmetal, bromine, is a ____________ . • Solid nonmetals include C, P, Se, S, and I. They tend to be ____________.

  9. Metalloids • A ____________ is an element that has some characteristics of _________ and some characteristics of _____________ . • __________at room temperature • Less malleable than metals, but not as brittle at nonmetals • Tend to be ______________ • Used in computers, digital watches, TV, and radios

  10. Noble Gases • Noble gases are the elements in ___________ • Very ____________ • All are _____________at room temperature • Ne, Ar, Kr, and Xe are used in lighting • He is used in party balloons and weather balloons

  11. Two Other Sets of Elements • Two sets of elements are placed __________the main portion of the periodic table • They are called the _____________and the _________________ • They are considered _____________, and fit into the table just after elements 57 and 89. • They are placed below the table to _________ ______________________.

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