Q: The sum of the superscripts in an electron configuration is equal to the number of electrons in that atom, which is in turn equal to what number? A:

OPTIONS:
- metallic number
- shell number
- orbital number
- atomic number

Answer: atomic number

Q: Red stars are the coolest; which are the hottest? A:

OPTIONS:
- giant
- white
- yellow
- blue

Answer: blue

Q: While components of a mixture can be separated by physical means, the components of a pure substance can only be broken down through what means? A:

OPTIONS:
- mechanical
- radiation
- thermal
- chemical

Answer: chemical

Q: In a scientific experiment, the variable that is affected by the other one is called what? A:

OPTIONS:
- effective variable
- essential variable
- independent variable
- dependent variable

Answer:
dependent variable