PPT-Chapter 3 Atoms, Elements, and the Periodic Table

Mr Polard Physical Science Section 1 Structure of Matter Vocabulary Section 1 Matter Anything that takes up space and has mass pg72 Atom A very small particle that makes up most kinds of matter and consists of smaller parts called protons neutrons and electrons pg73. What makes up matter?. By Amelia. Atoms. : an atom is the smallest particle of an element. Atomic number. : the number of protons in a nucleus is the elements atomic number. Each element is made of one kind of atom, so elements are called pure substances . History. Dmitri Mendeleev. (1834 – 1907). Russian chemist. Noticed regular (periodic) recurrence of chemical and physical properties after arranging by increasing atomic mass.. Eventually led to grouping by similar properties side by side. Collin College. Lecture Presentation. Chapter . 2_3. Atoms and Elements. Periodic Table. Each element is identified by a unique atomic number and with a unique . chemical symbol.. The chemical symbol is either a one- or two-letter abbreviation listed directly below its atomic number on the periodic table.. Periodic table. Elements are arranged based on similarities in their properties. Dmitri Mendeleev is credited with our current periodic table. Even predicted the existence of elements that were not yet discovered(i.e. Gallium). What is the periodic table?. periodic- a regular repeating pattern. periodic table- arrangement of elements so that their physical and chemical properties follow a regular repeating pattern. Rows and columns. 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.. S8P1e. . Develop models by analyzing patterns within the periodic table that illustrate structure, composition and characteristics of atoms.. Copy This! . 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. name #_______. date_______. . ____________. Block #___. A test of a hypothesis under conditions established by a scientist is called a. Atoms, Elements, & the Periodic Table Earth Science Intro Unit What is an Atom? Atom S mallest particle into which an element can be divided and still be the same element Building blocks of matter. They can be joined together by . chemical bonds. From last lesson:. Atoms can have different numbers of protons, neutrons and electrons.. There are 118 different types of atoms.. They can be found on the periodic table of elements.. 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. Section 6.1. . Development of the Modern Periodic Table. Section 6.2. . Classification of the Elements. Section 6.3. . Periodic Trends. Exit. Click a hyperlink or folder tab to view the corresponding slides..