Principal Sponsors
Makes grants to address the most serious social and environmental problems facing society, where risk capital, responsibly invested, may make a difference over time.
National Science Foundation
An independent federal agency created by Congress in 1950 to promote the progress of science.
King Saud University seeks to become a leader in educational and technological innovation, scientific discovery and creativity through fostering an atmosphere of intellectual inspiration and partnership for the prosperity of society.
The O'Donnell Foundation is devoted to building model programs to enhance the quality of education.
Isotopes and Atomic Mass
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Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.
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Resurse
Principalele subiecte
- Izotopi
- Masă atomică
Studii de caz
- 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.”
- Find the average atomic mass of an element given the abundance and mass of its isotopes.
- Predict how the mass and name of an isotope will change given a change in the number of protons, neutrons or electrons.
- Predict how the average atomic mass of an element changes given a change in the abundance of its isotopes.
Sfaturi pentru profesori
Ghidul profesorului (pdf) conţine idei propuse de echipa PhET.
Idei pentru predare
| Title | Authors | Level | Type | Updated |
|---|---|---|---|---|
Exploring Average Atomic Mass
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Stephanie Davis | HS | Lab | 28.09.2011 |
Using PhET in High School Chemistry- all my activities in pdf
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Trish Loeblein | UG-Intro HS |
HW Lab Demo CQs |
08.05.2013 |
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Isotopes & Atomic Mass-Inquiry Activity
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Patricia Loeblein | UG-Intro HS |
HW Lab Demo CQs |
05.06.2011 |
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Concept Questions for Chemistry using PhET
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Trish Loeblein | UG-Intro MS HS |
CQs | 08.05.2013 |
| Isotopes and Stability PhET Lab | Chris Bires | MS HS |
Lab | 14.03.2012 |
| Modeling Relative Atomic Mass | Roberto Marrero | UG-Intro HS |
Lab HW |
28.08.2011 |
| Modeling Isotopes | Roberto Marrero | HS MS |
HW Lab |
27.05.2011 |
| 동위원소와 원자량 SIM 사용지침서 | 이화국(Wha Kuk Lee) | HS MS |
Other Demo |
08.05.2013 |
Puteţi trimite ideile şi activităţile personale.
Simulări asemănătoare
Versiuni traduse:
Cerinţe software
| Windows | Macintosh | Linux |
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Microsoft Windows
XP/Vista/7 Sun Java 1.5.0_15 or later |
OS 10.5 or later
Sun Java 1.5.0_19 or later |
Sun Java 1.5.0_15 or later |
Credite
| Echipa de proiectare | Alţi colaboratori | Mulţumiri |
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