PPT-differentiate between elements and compounds on the most basic level.[6.5C]

October 2014 Secondary Science 7th Grade calculate density to identify an unknown substance66B October 2014 Secondary Science 7th Grade compare and contrast potential and kinetic energy. Mr. McMartin. Beta Science. Vocabulary. Compound: a pure substance composed of two or more elements that are chemically combined.. Compounds. Made of two or more elements that are chemically combined.. . and Cells. Elements of Life. A few major elements make up virtually all living things. Roughly 96% of an organism’s mass (including humans) is composed of just 4 elements. Oxygen. Carbon. Hydrogen. September . 17, . 2012. . Ms. Smith. Mrs. Malone. DO NOW:. Date. : . September 17, 2012. TEKS 6.5B Recognize that . a limited number of the many known elements comprise. the largest portion of solid . Ellen . Chittester. Antimony. Antimony is also identifiable by its symbol Ab, and its atomic number 51 on the periodic table of elements.. Uses. it is found in nature mainly as the sulfide mineral stibnite. Antimony compounds have been known since ancient times and were used for cosmetics; metallic antimony was also known, but it was accidentally identified as lead. It was established to be an element around the 17th century.. Mr. McMartin. Beta Science. Vocabulary. Compound: a pure substance composed of two or more elements that are chemically combined.. Compounds. Made of two or more elements that are chemically combined.. Unit 3. Biochemistry. Kasprowicz. /Squires. Topic 1: Matter . . anything that has . MASS. and . TAKES UP SPACE . (has volume). Examples:. Topic 1: Matter . Topic 1: Matter . . MASS. . is the amount of matter in an . 1. st. Year Chemistry. 1. Elements. Elements & Atoms. All substances are made up from tiny particles called atoms. When a substance is made up of only one type of atom it is called an element. The element iron is made up of iron atoms, the element hydrogen is made up of hydrogen atoms, the element sulphur is made up of sulphur atoms and so on.. – anything that has mass and takes up space.. vocabulary. word!. atom. - The atom is the smallest unit of a substance that maintains the properties of that substance.. It is so small, it would take a million atoms lined up to equal the thickness of a human hair.. Elements, Compounds, Mixtures All matter is made of atoms. Atoms are the smallest unit of an element that maintain the properties of that element. All matter can be classified as… Elements Elements are made of only one type of atom Rock, wood, air, metal, water, and animals are all matter. Matter. Elements. The various forms of matter are composed of one or more chemical elements. . An . element. is a pure substance that cannot be broken down into other substances by chemical means. . Early in the 19. th. century John Dalton developed atomic theory. His theory explained the best available experimental data at that time. His theory has been modified since then with the discovery of other data, but his work was the initial ground work that we will examine first.. . (. b) Compounds. Specific . Aim : To appreciate the idea pure substances, to know about Elements and . Compounds to . be able to identify both Elements and compounds present around us, to know . Elements v. Compounds. Element – Oxygen . Compound – Carbon Dioxide. The Letters of Life. Just like words are made up of letters, compounds are made up of elements. Water. Baking Soda. Capsaicin. Dr. . Nouf. H. . Alotaibi. Group 17 elements, fluorine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At), belong to halogen family. . Electron configurations ns. 2. np. 5. (n is the period number)..