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Chemistry.notebook Warm-up Particle April 10, 2012 Subatomic Particles Charge Location Nucleus Mini-presentations Chemistry.notebook April 10, 2012 Atomic mass: the sum of protons & neutrons in an atom. Atomic Number Atomic mass Atomic notation Atomic mass Atomic Number 108 Ag 47 • Practice: Bromine Chemical symbol Br 1. Standard Atomic Formation of Bromine 2. State the number of: ____ protons ____ electrons ____ neutrons Chemistry.notebook April 10, 2012 • Practice: Nitrogen N 1. Standard Atomic Formation of Nitrogen 2. State the number of: ____ protons ____ electrons ____ neutrons Isotopes are atoms that have the same number of protons but different numbers of neutrons. Because isotopes of an element have different numbers of neutrons, they also have different mass numbers. Chemistry.notebook April 10, 2012 Despite these differences, isotopes are chemically alike because they have identical numbers of protons and electrons. http://www.brainpop.com/science/matterandchemistry/isotopes/ Practice: Subatomic practice sheet Chemistry.notebook April 10, 2012 Subatomic Particles Worksheet
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