January 2012
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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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Atomic Math

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January 2012

January, 2012

Atomic Math


Regular atoms

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

Your Turn: Regular Atoms

  • 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

  • Vanadium

  • Ruthenium

  • Iodine

  • Sulfur

  • Silicon

  • Oxygen

  • Radon

  • Cerium


Isotopes

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


Your turn isotopes

Your Turn: Isotopes!

  • 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


Atomic math

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


Your turn ions

Your Turn: Ions

  • 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+

  • Radium 5-

  • Mercury 2+

  • Neon 2-


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