Group number and period number elements
[PDF File]Unit 3: Periodic Table Lab Packet - gardencity.k12.ny.us
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• Assign a group number for the elements in groups 1, 2 and 13-18 based upon the number of ground-state valence electrons in their atoms. • Assign a period number for the elements in groups 1, 2 and 13-18 based upon the number of occupied shells in a ground-state electron configuration for the element.
The Periodic Table of the Elements - Palm Beach State College
Columns of elements define element groups. Elements within a group share several common properties. Periods Rows of elements are called periods. The period numbers increase as you go from top to bottom on the periodic table. The number of elements in a period increases as you move down the periodic table.
[PDF File]Groups in the Periodic table - .NET Framework
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•Elements in the same group have the same number of electrons in their outermost energy level. •This number is equal to the group number. •The outer electrons are called valence electrons. Because they have the same number of valence electrons, elements in a group share similar chemical properties.
[PDF File]Periodic Trends Explained - Weebly
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5. List, by number, both the period and group of each of these elements. Symbol Period Group a) Beryllium Be b) Iron Fe c) Lead Pb 6. How does an element’s period number relate to the number of the energy level of its valence electrons? Atomic and Ionic Radius: 7. Define atomic and ionic radius. 8.
[PDF File]The Periodic Table - harlan.k12.ky.us
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element within a period can help to determine the element's electron configuration and number of valence electrons. Groups and Families The division of elements into vertical groups by column creates families of elements. Elements in the same group all have the same number of valence electrons and therefore similar chemical properties.
[PDF File]THE PERIODIC TABLE - Namibia University of Science and ...
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– Elements in the same group has same # of valence electrons – Each group has similar chemical and bonding properties – 8 groups • Periods – Arranged by increasing atomic number – Elements in a period have the same number of electronic shells – 7 periods . Periodic Table . Groups go down on the periodic table .
[PDF File]Classification of Elements Classify each element as a ...
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Group Number Period Number Identifying Unknown Elements 1. This element is in the same family as lead and it has fewer protons than sodium. _____ 2. This element has an atomic number that is one greater than platinum. _____ 3. This element has the most protons of any element in group 15. _____ 4. This element has the more than 50 but less than ...
[PDF File]Interpreting the Periodic Table Teacher Page
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15. If the atomic number of Element D is 20, what is the atomic number of Element E? _____ 16. Label the element in group 17, period 6 with the letter “J”. Is it a metal, nonmetal, or metalloid? _____ 17. Label the element in group 15, period 4 with the letter “K”. Is it a metal, nonmetal, or metalloid?
[PDF File]The Periodic Table (B) - Weebly
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Period Number: Occupied Energy Levels = Period Number The electrons are on 4 energy levels (n = 2) = Period 2. Ne is in period 2 Group Number: Electrons on the last energy level = Valence Electrons = Group Number 8 electrons ( e-) on the last energy level = 8 Valence electron = Group 8 Ne is in group 8A or 18
[PDF File]Periodic Trends Worksheet Atomic Radius vs. Atomic Number ...
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1. Using the data below, make a bar graph of atomic radius vs. atomic number for Group 2A and for Period 3 of the periodic table. 2 Group 2A Element Atomic Number Atomic Radius Be 4 1.11 Mg 12 1.60 Ca 20 1.97 Sr 38 2.15 Ba 56 2.17 Atomic Radius Atomic Number Answer the following questions about atomic radius in complete sentences. Period 3
[PDF File]Periodic Classification of Elements
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Period number = number of shells. Group number = number of valence e –(if valence e = 1 or 2) or group number = number of valence e– +10 (if valence e–>2)?? It shows the distance between the nucleus and valence e–. It decreases along a period from left to right but increases down a group. These are the properties which show a
[PDF File]A Periodic Table of the Elements at Los Alamos National ...
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Periodic Table of the Elements A Resource for Elementary, Middle School, and High School Students Click an element for more information: Period Group** 1 IA 1A 18 VIIIA 8A 1 1 H 1.008 2 IIA 2A 13 IIIA 3A 14 IVA 4A 15 VA 5A 16 VIA 6A 17 VIIA 7A 2 He 4.003 2 3 Li 6.941 4 Be 9.012 5 B 10.81 6 C 12.01 7 N 14.01 8 O 16.00 9 F 19.00 10 Ne 20.18 3 11 ...
[PDF File]The Organization of the Periodic Table Answer Key Directions
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3. Using the group and period numbers, identify the elements that are located in each of the following location. a. The element in group 10 and period 5 = Pd b. The element in group 15 and period 4 = As c. The element in group 2 and period 3 = Mg d. The element in group 18 and period 6= Rn e. The element in group 1 and period 7 = Fr 4.
[PDF File]Periodic Table Worksheet - Springfield Public Schools
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A. What is the atomic number of iron? _____ B. To which period does iron belong? _____ C. To which group does iron belong? _____ Name the elements that have many properties like iron. _____ _____ _____ _____ Using the Periodic Table Fill in the chart below. The first row has been completed as an example. Element Symbol Atomic Number Period ...
[PDF File]UNIT 5 - PERIODIC TABLE & PERIODIC LAW LOCATING MAIN GROUP ...
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It is possible to tell the period, group, and "block" where this element is located. * Period -- largest coefficient number is 4, so element is in Period 4 ... In other words, when elements are arranged in order of increasing atomic number, elements with similar properties appear at regular intervals. D. Bottom line = elements in the same group ...
[PDF File]Graphing Trends in the Periodic Table with Graphs and ...
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Group 1 and which elements are members of Group 2. Graph 3: Ionization Energy vs Atomic Number: Elements 3-20 For elements 3 -20, make a graph of the energy required to remove the easiest electron (first ionization energy) as a function of atomic number. Plot atomic number on the X axis and energy required on the Y axis.
[PDF File]Periodicity of Elements - gardencity.k12.ny.us
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• Assign a group number for the elements in groups 1, 2 and 13-18 based upon the number of ground-state valence electrons in their atoms. • Assign a period number for the elements in groups 1, 2 and 13-18 based upon the number of occupied shells in a ground-state electron configuration for the element.
[PDF File]Chapter 18: The Representative Elements - UC Santa Barbara
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Chapter 18: The Representative Elements Group 7A Electron configurations ns2np5 (n is the period number). In its elemental state, all halogens atoms combine to form diatomic molecules (ex. F 2,I 2,…). With the exception of F, the halogens can also lose valence electrons and their oxidation states can range from -1 to +7. 29 The Halogens
[PDF File]LOCATING MAIN GROUP ELEMENTS ON THE PERIODIC TABLE NOTES ...
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The _____ is the number of the period where the element is located. * To tell which "block" (s, p, d, f) this element is in... ~ find the highest occupied sublevel for this element ... D. Bottom line = elements in the same group have similar properties III. Modern Periodic Table: arrangement of the elements in order of their atomic numbers so ...
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