Answer:
D
Explanation:
Atomic radius is the distance from the atom's nucleus to the outer edge of the electron cloud. In general, atomic radius decreases across a period and increases down a group. Across a period, effective nuclear charge increases as electron shielding remains constant.
Answer:
Bacteria
Explanation:
There are two kinds of cells found in/on the human body that lacks nucleus
- Red blood cells
- Bacteria
Since the material observed under the microscope was scraped from under the finger nails and there was no indication of broken skin, it is likely that the observed cells are bacteria.
It’s true hope this is right
