Question

make the following changes to the simulation
make sure to open the mass number the net charge menu by clicking on the green + signs:
mass number and net charge menu images

1. build an atom that contains at least one proton, one neutron, and one electron. add a proton. what does adding the proton affect? (select all that apply) (1 point)

□ the name of the element changes
□ the mass of the element changes
□ the charge of the element changes

Explanation:

1. Effect on Element Name: The number of protons (atomic number) defines an element. Adding a proton changes the atomic number, so the element's name changes (e.g., hydrogen to helium if a proton is added to H).
2. Effect on Mass: Mass number = protons + neutrons. Adding a proton increases the mass number, so the element’s mass (related to mass number) changes.
3. Effect on Charge: Protons have a +1 charge. If we only add a proton (and not an electron to balance), the net charge becomes +1 (previously neutral, assuming equal protons/electrons initially). So the charge changes.

Answer:

• the name of the element changes
• the mass of the element changes
• the charge of the element changes