Which statement is completely accurate?
atoms of the same element always have different numbers of neutrons.

atoms of the same element can have different numbers of neutrons.

atoms of the same element always have different atomic weights.

atoms of the same element can have neutrons but exist without protons.

Matched chromosomes carrying information about the same characteristics in the organism are called

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.

Anonnative species is best described as a species that a. does not normally live in an area b. has no permanent home c. is a poor predator d. increase biodiversity