Atomic Math

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# Atomic Math - PowerPoint PPT Presentation

January , 2012. Atomic Math. Regular Atoms. Atomic Number = the number of protons = the number of electrons Atomic Mass = the number of protons + neutrons Gold P: 79 N: 197-79 = 118 E: 79. Your Turn: Regular Atoms. P: 23 N: 28 E: 23 P: 44 N: 57 E : 44 P: 53 N: 74 E : 53

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## PowerPoint Slideshow about ' Atomic Math' - duante

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Presentation Transcript
January, 2012

### Atomic Math

Regular Atoms
• Atomic Number
• = the number of protons
• = the number of electrons
• Atomic Mass
• = the number of protons + neutrons
• Gold
• P: 79
• N: 197-79 = 118
• E: 79
• P: 23 N: 28 E: 23
• P: 44 N: 57 E: 44
• P: 53 N: 74 E: 53
• P: 16 N: 16 E: 16
• P: 14 N: 14 E: 14
• P: 8 N: 8 E: 8
• P: 86 N: 136 E: 86
• P: 58 N: 82 E: 58
• Ruthenium
• Iodine
• Sulfur
• Silicon
• Oxygen
• Cerium
Isotopes
• Atoms of the SAME ELEMENT that have a different number of NEUTRONS (New Mass)

Gold - 200

• Atomic Number
• = Number of Protons
• = Number of Electrons
• Atomic Mass
• = the number of Protons + Neutrons
• =200 now! (See Above?)
• Gold – 200
• P: 79
• N: 200 – 79 = 121
• E: 79
• P: 6 N: 8 E: 6
• P: 19 N: 18 E: 19
• P: 76 N: 124 E: 76
• P: 50 N: 65 E: 50
• P: 29 N: 36 E: 29
• P: 54 N: 80 E: 54
• P: 22 N: 28 E: 22
• P: 40 N: 60 E: 40
• Carbon-14
• Potassium-37
• Osmium-200
• Tin-115
• Copper-65
• Xenon-134
• Titanium-50
• Zirconium-100
Ions
• Atoms of the same element where the ELECTRONS are not equal to the PROTONS
• Charged Atoms
• Losing Electrons Creates a Positive Ion
• Gaining Electrons Creates a Negative Ion
• Atomic Number
• = the Number of Pr0tons
• Atomic Mass
• = the Number of Protons + Neutrons
• Gold 3+
• P: 79
• N: 118
• E: 79 – 3 = 76
• P: 13 N: 14 E: 10
• P: 5 N: 6 E: 9
• P: 18 N: 22 E: 19
• P: 34 N: 45 E: 32
• P: 26 N: 30 E: 25
• P: 88 N: 138 E: 93
• P: 80 N: 121 E: 78
• P: 10 N: 10 E: 12
• Aluminum 3+
• Boron 4-
• Argon 1-
• Selenium 2+
• Iron 1+