Chemical Bonding In Terms of Atomic Properties

• Matter occupies space and has mass.
• Solid, liquid, and gas are the three states of matter.
• Definite shape, infinite shape, and infinite volume are properties of solids.
• Not compressible, compressible, and can be compressed are properties of gases.
• Ductility is the ability to be stretched and shaped into wires.
• Intensive properties do not depend on amount and include color, shape, and luster.
• Extensive properties depend on amount and include mass, length, volume, and size.
• Mixtures are made up of several components and are based on the uniformity of composition and properties, either homogeneous or heterogeneous.
• Evaporation is a soluble liquid being separated from a solvent, involving heating.
• Distillation is used to separate two miscible liquids with different boiling points, such as alcohol beverages, petroleum, and water-ethanol solution.
• In any chemical reaction, atoms are arranged to produce different substances.
• Compounds are made up of atoms of more than one type of element.
• Molecular formula shows the type of atom and the number constituting a certain molecule.
• Isotopes are also used in radiolabeling of organic compounds and in archaeological dating with 3 H and 14 C.
• Structural formula shows the order in which the atoms in the molecule are bonded either 3d or not.
• Atoms of the same element have the same chemical properties.
• Atomic weight is the number of protons and neutrons in an atom.
• Ball and stick model is a type of STEM/ SHS.
• John Dalton proposed the ATOMIC THEORY which states that elements are made up of extremely small, indestructible particles called atoms.
• Molecules are a collection of 2 or more atoms held in a specific arrangement due to sharing of electrons and acts as a single unit.
• The identity and mass of the atoms are unchanged.
• Atomic number is the number of protons.
• MAAM BUCKS Q1: Ishe, Kiel, Chase, Jap 3.0 ATOMS are the basic building block of matter.
• Common isotopes used in radiotherapy for cancer patients include 61 Co and 226 Ra.
• Isotopes are atoms of the same number of protons but different number of neutrons.
• Decantation is a separating funnel used to separate components or two liquids which do not dissolve very well, such as particles of gold-mud, cream-skim milk, and oil and water.
• Using a magnet is a technique to separate two or more solids with one part having magnetic properties, such as mining and iron-sand mixture.
• Centrifugation separates insoluble materials from a liquid when normal filtration doesn’t work well, such as in urine tests and separating butter from cream.