8. Which of the following determines the identity of an atom? a. isotope
b. atomic mass
c. atomic number
d. charge

C. Atomic Number

Explanation:

Atomic number, also known as proton number, never changes. Therefore it allows us to identify each atom.

thermophiles, notice the prefix thermo.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u