Chemistry 1027A/B Study Guide - Midterm Guide: Atomic Number, Silicon Dioxide, Covalent Bond

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Chemistry 1027 Exam Review
How do We Speak Chemistry?
Key Learning Outcomes
1. Describe Composition of atoms
2. Describe information conveyed on periodic table
3. Classify substances using appropriate chemical terms (element, compound, isotope organic etc.)
4. Read, write and interpret molecular formulas and structures
5. Give examples of physical properties
Section A: Element
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An element is a substance consisting of one type of atom
Atom: the smallest component of an element having the chemical properties of the element,
3 Parts:
Nucleus
- Combinations of neutrons (neutral) and protons (positive)
Electrons (Negative)
- Electron deficient positive charge
Protons Determine the identity of an atom
The Periodic Table of Elements
ISOTOPES
Isotope: Each of two or more forms of the same atom with the same number of protons but differing numbers of
NEUTRONS
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Document Summary

Key learning outcomes: describe composition of atoms, describe information conveyed on periodic table, classify substances using appropriate chemical terms (element, compound, isotope organic etc. , read, write and interpret molecular formulas and structures, give examples of physical properties. An element is a substance consisting of one type of atom. Atom: the smallest component of an element having the chemical properties of the element, Isotope: each of two or more forms of the same atom with the same number of protons but differing numbers of. Protons determine the identity of an element while different neutrons create isotopes. Hydrogen 3 (tritium) radioactive, studies using tritium are immense see tritium attached to a drug molecule to see how it moves around the body. Uranium is one of the heaviest elements found in nature in significant quantities. Uranium comes in 2 isotopes (235,238), 235 is uranium used for weapons to enrich your increasing the percentage of 235.

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