Atomic Mass of Yummium OBJECTIVES: I) To amalyee the isotopes of the clement Yam
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Question
Atomic Mass of Yummium OBJECTIVES: I) To amalyee the isotopes of the clement Yammium 2) To calculate the weighted average atioenic mass for a sample of Y INTRODUCTION The atomic mass of an element s the weightnd average of the daffivent notopes of the elens This is the listed mamber on the bottom of the elemest bon on the periodic table lotopes aæe dafferes forms of the samse element Since they ae of the same clement, they have dhe sane aumber of prob they harve different sumber of neutcoms For example, oxygen elment has dre diffe oxygen. 16 (, axveen 17(10), and onveen is eo) nese three actors belong toorm, demni mass nambers All their o hae8peotoess and 8 electron Howeves, oxypm-16 has &neutroes whuile oxyges-17 has 9 mrutrons and oxyrm-18 has 10 arueoes Each isotope of element has a mass with a natural peecent abundance. The relative abundance and mass of the atorric particles are measured in the laboratory by an intt called a mss spectter Isetopes that are moee fequerny ta snare at have harher abundance" have greater cottbution to the weighted average atomic mass of ehe element In this experinent you will stady the elemet "Yummies aod you will calculate its atonsc PROCEDURE Skmle, Reeses, and Md sepeesent the 3 isetopes of Ymi 2Use the pictares in Figure 1 to find the notal mass of the aotopes and the abor of cens of each tipe of isotopes. Note: Each piece of candy i sefierel as s Esmer te aes n the lah roport ww 5 6 3 4. O P W E FGH 3LExplanation / Answer
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Solution
Yummium Isotopes
Isotope
No. of atoms
Mass (gm)
Skittle
9
0.932
Reese
8
0.613
MM
19
0.1520
Average mass of atom of Reesee =0.613/8=0.0766 gm
Average mass of atom of MM =0.1520/19=0.008 gm
2 Relative abundance of
Isotope
No. of atoms
Mass (gm)
Skittle
9
0.932
Reese
8
0.613
MM
19
0.1520
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