Which of the following statements about subatomic particles best characterizes electrons? a positive charge, light, circling the nucleusb no charge, heavy, found in nucleusc negative charge, light, circling the nucleus d negative charge, heavy, circling the nucleus

Every electron carries one elementary negative charge.  Concerning mass,
it takes roughly 1,840 electrons to make enough mass for 1 proton or 1 neutron.
Electrons don't necessarily have to stay connected to an atom, but when they do,
they circle the nucleus.

So you should select (C): ==> Negative, ==> light, ==> circling the nucleus.

The answer should be (C) negative charge,  light and circling the nucleus.

Why?  An electron always has negative charge. Its mass is 1/ 1900 times the mass of proton and it circles the nucleus.

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

Answer    "a salt" would be the best answerexplanationsalts can be defined as ionic compounds that are neither acids nor bases. nacl is an example of a salt, and its ionic.an enzyme is an organic compound which is covalently bonded, not ionically bonded.acids are generally held together by covalent bondsan element does not need any bonds to exist