Atoms and elements. which of the following are correct statements about elements?
select all that apply.
a. an element is defined by the number of electrons in each of its atoms.
b. the reactivity of an atom depends primarily on its electronic structure.
c. the number of protons in a neutral atom is equal to the number of electrons.
d. electrons move along a clearly defined path in an atom.
e. each atom of an element has the same number of protons, neutrons, and electrons.

answer; /// i believe that the correct answer is; ///a combination of the birth and death

the answer is:

carbon dioxide

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