Race Jacobson Build an Atom Open the Build an Atom Interactive Simulation found in the Syllabus and the Study Guide under the Unit I Lab Assignment. You will need to take screenshots in this assignment. You can do this by selecting the three vertical dots in the bottom right hand corner of the simulation screen and then selecting “Screenshot.” A screenshot will be downloaded to your browser, which you can save to your computer. Part 1: Build an Atom Click on the + sign for each of the boxes (element name, net charge and mass number) to view changes as you change the number of particles in the atom. Directions: Create an Oxygen (O) atom (8 protons, 8 neutrons, 8 electrons). Follow the directions, observe what happens and complete the table below. (You need to RESET back to your original Oxygen (O) atom (8 proton, 8 neutrons, 8 electrons) after you make each change!) Observe and record ALL changes to the original Oxygen (O) atom when each subatomic particle is added! Add a Neutron Add an Electron Add a Proton (to original atom) (to original atom) (to original atom) How does it change the: How does it change the: How does it change the: Overall charge: __neutral Overall charge: _-1______ Overall charge: __+1____ Mass: _____17__________ Mass: _______16________ Mass: Atomic Number: ___8___ Atomic Number: ____16__ _____17__________ Type of Atom: __neutral___ Type of Atom: __-ion____ Atomic Number: _____9__ Type of Atom: _+ion_____ Using your periodic tables, choose three elements (up to neon) and build their atoms using the simulator. Each atom must be STABLE and NEUTRAL. Fill in the information about them after you build each atom. Element #1: ___Hydrogen____ # of protons: ____1___ # of neutrons: ___1____ # of electrons: ___1____ Screenshot of completed atom: Atomic #: ___1____ Atomic mass: ____1______ Element #2: ____helium________ # of protons: _____2__ # of neutrons: __2_____ # of electrons: ____2___ Screenshot of completed atom: Atomic #: ____2___ Atomic mass: ___4_______ Element #3: _____Carbon______ # of protons: ____6___ # of neutrons: ___6____ # of electrons: ___6____ Screenshot of completed atom: Atomic #: __6____ Atomic mass: ____12____ Part 2: Atoms and ions and isotopes, oh my! Play with the simulation to discover: 1. Which particle affects the charge of an atom or ion. __electron_____________ 2. Which particle changes the type of element your atom is. __proton________ 3. Which particle makes the atom an unstable isotope (make sure to check the box at the bottom that says stable/unstable). ______neutron___________ Atomic Number, Atomic Mass and Charge Play with the simulation to identify what each number signifies. Label the diagram below. ______atomic mass_______ ______ ____neutral___ _______atomic number___________ Design a stable Fluorine ion with a charge of +2 Design a stable Carbon ion with a charge of -1 Take a screenshot of your Fluorine ion and insert below. Take a screenshot of your Carbon ion and insert below. Part 3: Click Game at the bottom of the simulator window. Play the four games- can you get all five stars each time? Take a screenshot of your results of ALL FOUR games and insert on the next page.
