Answer:
an element is not in an atom
Explanation:
because the only things in a atom are electrons neutrons and protons
Answer:
Screening for the presence of drugs in serum and urine using different separation modes of capillary electrophoresis. The most common mode is capillary zone electrophoresis (CZE), in which charged analytes migrate in a buffer under the influence of an electric field.
Explanation:
Second one i think.......
