Question

question 10) in the procedure section of the lab, a graph is provided for atomic radii (pm) versus period 4 elements (figure 14 in lab procedure). for this graph, what is the independent variable and what is the dependent variable? (6 pts) match the appropriate option with each variable. more choices are provided than will be used. 1. temperature (°c) 2. volume (ml) 3. mass (g) 4. atomic number (z) 5. vapor pressure (psi) 6. atomic mass (amu) 7. nfpa hazard 8. atomic radii (pm) dependent variable independent variable

Explanation:

To determine the independent and dependent variables, we analyze the graph description: "Atomic radii (pm) versus period 4 elements". The independent variable is the one we control or that changes independently, which is related to the period 4 elements—their atomic number (Z) is a characteristic that defines them in the period. The dependent variable is what we measure as a result, which is the atomic radii (pm), as it depends on the element (and its atomic number).

For the dependent variable, we match it to the measured quantity, which is Atomic Radii (pm) (option 8). For the independent variable, we match it to the characteristic of period 4 elements that drives the change, which is Atomic Number (Z) (option 4).

Answer:

Dependent Variable: 8. Atomic Radii (pm)
Independent Variable: 4. Atomic Number (Z)