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Isotopes

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Periodic Table	28 mins	0 completed	Learn
Mole Concept	37 mins	0 completed	Learn Summary
Isotopes	12 mins	0 completed	Learn Summary
Mass Spectrometry	9 mins	0 completed	Learn
Subatomic Particles	8 mins	0 completed	Learn
Atomic Theory	16 mins	0 completed	Learn
Thomson's Cathode Ray Tube Experiment	8 mins	0 completed	Learn
Oil Drop Experiment	7 mins	0 completed	Learn
The Chadwick Neutron Experiment	6 mins	0 completed	Learn
Gold Foil Experiment	10 mins	0 completed	Learn
End of Chapter 2 Problems	28 mins	0 completed	Learn

Additional Guides
Periodic Table Charges
Calculating Molar Mass
Calculating Grams to Moles

Learn Additional Practice Summary

Next SectionMass Spectrometry

Solution: In a naturally occurring sample, 19.8% of boron atoms have five neutrons and 80.2% have six neutrons. What is the mass of a boron atom containing 6 neutrons?

Problem

In a naturally occurring sample, 19.8% of boron atoms have five neutrons and 80.2% have six neutrons.

Ten boron nuclei are depicted. Eight of which (shaded dark gray) have five protons (white circles) and six neutrons (black circles), and two nuclei (shaded light gray) have five protons (white circles) and five neutrons (black circles).

What is the mass of a boron atom containing 6 neutrons?

Isotopes

Solution: In a naturally occurring sample, 19.8% of boron atoms have five neutrons and 80.2% have six neutrons. What is the mass of a boron atom containing 6 neutrons?

Problem

Practice Problems

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