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Chemistry: The Atom and Elements.doc
Name: Chemistry: The Atom and Elements.doc
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The elements in columns have very similar chemical properties. 2. The first The number at the top of each square is called the atomic number. This number. Compounds are formed when atoms of different elements combine in simple Chemical reactions involve the re-organization of atoms, but the identity and. The smallest particle into which an element can be divided and still be the same substance is a (n) d. name, chemical symbol, atomic number, and atomic mass.
Common examples include carbon, sulfur, oxygen, iron, copper, aluminium. Elements are represented by symbols. Compounds are substances made from atoms of different elements joined by chemical bonds. They can only be separated by a chemical reaction. Air is a mixture containing molecules of gases such as nitrogen and oxygen (elements) and carbon dioxide (a compound). Atoms of the element argon exist on their own. We use the symbol for the element, from the periodic table A few elements consist of pairs of atoms, chemically bonded together. A substance that is made of only one type of atom is called an ELEMENT. All the chemical elements listed on the Periodic Table were made by STARS and.
Chemistry - Possible Inside the Atom Test Questions. Multiple Choice 1. Atoms have no electric charge because they 8. An element's atomic number is equal to its number of 9. Two different isotopes of an element have different. Periodic Table and Chemical Formula Review Which element has the smallest atomic number? D; Which elements are considered good conductors? C,E,D. All modern Periodic Tables list the elements in order of increasing atomic However Dmitri Mendeleev, the Russian chemist who made the first Periodic Table. Atoms, elements and compounds. Define the word Write word equations for all the chemical reactions in the Chemistry course. Write formulae and. Aristotle's 4-element theory won popularity over Democritus as Aristotle tutored of Modern Chemistry; Atoms are like solid billiard balls that stick together or.