Click on the 'Isotopes' tab in the simulation below. Use the simulation to answer questions 4-11.
(If you'd like to have the simulation open in another tab, visit Isotopes and Atomic Mass PhET)
Build an atom of Hydrogen-1, Hydrogen-2, and Hydrogen-3.
What does the number (-1, -2, or -3) in the isotope name represent (hint: what does adding neutrons effect at a glance)?
Build a Hydrogen-1 isotope. Click between the 'Mass Number' and 'Atomic Mass (amu)' options on the scale. Do the same thing but by building a Hydrogen-2 isotope.
Match the numbers below.
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
Atomic mass of Hydrogen-2 | arrow_right_alt | 1 |
Mass number of Hydrogen-2 | arrow_right_alt | 1.00783 |
Mass number of Hydrogen-1 | arrow_right_alt | 2 |
Atomic mass of Hydrogen-1 | arrow_right_alt | 2.01410 |
Next, click on 'Boron' on the periodic table. Build an isotope of Boron-9, Boron-10, and Boron-11. Click between the 'Mass Number and 'Atomic Mass (amu)' options on the scale.
Match the numbers below
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
Atomic mass of Boron-10 | arrow_right_alt | 9 |
Mass number of Boron-11 | arrow_right_alt | 10 |
Atomic mass of Boron-11 | arrow_right_alt | 11 |
Mass number of Boron-9 | arrow_right_alt | 11.00931 |
Mass number of Boron-10 | arrow_right_alt | 10.01294 |
Keep your 'Boron' isotope open. Click on the 'Abundance in Nature' tab.
Which of the following isotopes of Boron are present in nature?
Isotopes of sodium