30 points(more than one answer)

when monitoring the species on an island, scientists found several members of a new species they had never seen before in their sample. what could this new species mean?

a. a native species has changed its range.
b. an invasive species has been introduced into the area.
c. the scientists failed to detect the species in their previous evaluations of the area.
d. the species isn’t a part of the ecosystem.

im back lol i heard you where asking for me

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.