PPT-Periodic Properties of the Elements

Asst Prof Sachin P Patil Chemistry Department S T CoOp Education Societys Science Senior College Shahada Development of Periodic Table Elements in the same group generally have similar chemical properties. History of the Periodic Table:. At the conclusion of our time together, you should be able to:. . List one of the earliest contributors to the discovery of the elements. . Explain triads and who developed this table of the elements. and Periodicity. Chemistry. Outline. PowerPoint Presentation by Mr. John Bergmann. The Elements. . elements known to the ancients… . Element names come from a variety of sources. . place names… . Classification of . elements: . The arrangement of elements in such a manner that elements with similar properties are grouped together while elements with dissimilar properties are separated. .. The classifications are as follows. Patterns in Element Properties. Pure elements at room temperature and atmospheric pressure can be solids, liquids, or gases.. Some elements are colorless. Others. . are colored.. Despite the differences between elements, groups of elements share certain properties.. By 1869, there were 63 known elements. Mendeleev organized elements by atomic mass and chemical reactivity. Created the first widely accepted periodic table. Mendeleev Continued. Mendeleev found patterns by arranging cards with names, masses, and other physical and chemical properties of elements. Turn to page 3 in the Unit Note Packet . History of the Periodic Table. In the . mid-1800’s. , . Dimitri Mendeleev published a table of all of the known elements, 70 elements to be exact. . Not until . 2. Electron Configuration. An . “electron configuration”. of an atom is a particular distribution of electrons among available subshells. . The . notation for a configuration lists the . subshell . Law. Geneva High School. Section 5-1 History of the Periodic Table.  By 1860, more than 60 elements had been discovered, yet chemists had no way of organizing them or agreeing on basic properties of the element.. EQ. : Just WHERE are these elements with . similar . properties?. Wake Up!. Sing along (if you’d like!). Song: Day 3 with the words. Song: Day 2 with pictures. Song: Day 1 on the periodic table. Section 1. Development of the Modern Periodic Table. The periodic table evolved over time as scientists discovered more useful ways to compare and organize the elements.. Section 1: . Development of the Modern Periodic Table. The Periodic Table Ms. Pici 2016-2017 The Periodic Table Lay out 2-28-16 Take out periodic table basics and white paper You will need scissors, a glue stick, and colored pencils Use an Analogy Calendar like the Periodic Table Modern periodic law . Periodic law. The physical and chemical properties of elements are periodic . function of their atomic numbers.. The physical and chemical properties of elements are periodic . function of their atomic weights. Important facts to remember. There are over 100 elements listed in the Periodic Table.. Most of the elements are metals.. Only about 20 of the elements are non-metals.. The Periodic Table lists only . History. Organization. Introduction to . Bonding. Trends. Terms. The Periodic Law. States that the physical & chemical properties of the elements are periodic functions of their atomic numbers.. The Periodic Table.