Columns in the periodic table are called groups, and the rows are called periods. Notice that...
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Columns in the periodic table are called groups, and the rows are called periods. Notice that the groups are labeled 1 to 18 and the periods are labeled 1 to 7. Groups 1, 2, and 13 to 18 are called the main group elements, groups 3 to 12 are the transition elements, and the bottom two rows are called the lanthanides and actinides, respectively. This table gives properties and alternate names for some of the groups: Properties Group 1 Name Alkali metals React to form 1+ ions. 2 Alkaline earths React to form 2+ ions. 17 Halogens 18 18 Rare gases (noble gases) React to form 1- ions. Stable and unreactive. (Elements from other groups form ions to achieve the same number of electrons as a noble gas.) Part A What is the atomic number of the element located in group 16, period 2 of the periodic table? Enter the atomic number. View Available Hint(s) Submit Part B If a new element were discovered and it was found to form 1- ions, in which group would you place it in the periodic table? Enter the group number. Columns in the periodic table are called groups, and the rows are called periods. Notice that the groups are labeled 1 to 18 and the periods are labeled 1 to 7. Groups 1, 2, and 13 to 18 are called the main group elements, groups 3 to 12 are the transition elements, and the bottom two rows are called the lanthanides and actinides, respectively. This table gives properties and alternate names for some of the groups: Properties Group 1 Name Alkali metals React to form 1+ ions. 2 Alkaline earths React to form 2+ ions. 17 Halogens 18 18 Rare gases (noble gases) React to form 1- ions. Stable and unreactive. (Elements from other groups form ions to achieve the same number of electrons as a noble gas.) Part A What is the atomic number of the element located in group 16, period 2 of the periodic table? Enter the atomic number. View Available Hint(s) Submit Part B If a new element were discovered and it was found to form 1- ions, in which group would you place it in the periodic table? Enter the group number.
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Related Book For
Introductory Chemistry Concepts And Critical Thinking
ISBN: 9780321804907
7th Edition
Authors: Charles Corwin
Posted Date:
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