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phet.colorado.edu/en/simulation/isotopes-and-atomic-mass

Define “isotope” using mass number, atomic number, number of protons, neutrons and electrons. Given information about an element, find the mass and name of an isotope. Give evidence to support or dispute: “In nature, the chance of finding one isotope of an element is the same for all isotopes.”

phet.colorado.edu/sims/html/isotopes-and-atomic-mass/...

‪Isotopes and Atomic Mass‬ 1.0.15 - PhET: Free online ...

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Isotopes are atoms which have the exact atomic number but different mass numbers as a result of change in the amount of neutrons. Comparing the proportion of the 14C concentration found in an object to the quantity of 14C in the atmosphere, the quantity of the isotope which has not yet decayed can be set.

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2. How%are%isotopes%of%the%same%element%similar%to%each%other%and%how%are%they%different%from%each%other%in% terms%ofatomic%number,%mass%number,%numberofprotons ...

atischemistry.weebly.com/.../6/54867073/isotope_answer_key.pdf

Based on the atomic mass, which isotope should be more abundant? Answer: The atomic mass of boron is 10.811; therefore, boron-11 is more abundant because the mass number is closer to the atomic mass. 8. Lithium-6 is 4% abundant and lithium-7 is 96% abundant. What is the average mass of lithium? Answer: 6.96 amu 9.

www.helpteaching.com/tests/printKey.htm?test=354776

An element has an atomic mass of 355.5 amu. Its isotopes have mass numbers of 355 and 356. Which statement is true about the isotopes of the element? The isotope with a mass number of 355 is more abundant. The isotope with a mass number of 356 is more abundant. The isotopes have an equivalent abundance.

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Phet Isotopes And Atomic Mass Worksheet Answer Key. Phet Isotopes And Atomic Mass Worksheet Answer Key with Phet Isotopes And Atomic Mass Worksheet Answer Key. Phet ...

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This simulation (the original PhET Java version) promotes understanding of isotopes by providing a simple way to model isotopes of the first 10 elements in the Periodic Table. In the most basic model, users click on an atomic symbol. The…

betterlesson.com/lesson/resource/3213526/phet-isotope-swf-pdf

This can be seen on the answer key; I give them about 10 minutes to complete this before we go over the answers. Most students are aware of the answers to 1-4 because they have calculated atomic mass in the beginning of the year, so I do not much time on this part.