GSCI 1051 Study Guide - Midterm Guide: Ionic Bonding, Chemical Formula, Atomic Number

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27 Mar 2017
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Matter is physical material that has mass and occupies volume. Matter is composed of elements made of one atom type that cannot be broken down into simpler substances. Atoms composed of protons, neutrons, and electrons (protons and neutrons are found in the nucleus) Atomic number refers to the number of protons in the nucleus. Atomic mass is the total amount of mass in an atom. An atom that varies in atomic mass is called an isotope p+ e- = 0 charge ions- different number of e- than p+ cations have fewer e- than p+ aions have more e- than p+ Molecules are connected atoms chemical formulas are the proportions of atoms compound are different atoms chemical bonds. Ionic bond- attraction of charges in cations and aions: covalent bonds- sharing of electrons, metallic- outer shell electrons move to another. Polar bonds- different sides of molecules have different charges. Hydrogen bonds- bonds between hydrogen and a more electromagnetic atom.

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