B
Explanation:
option b is correct because
hydrogen is smallest atom
isotopes of elements have different atomic mass
atom mass have nothing to do with elemental identity
Germanium is classified as a metalloid.
Answer:
You need to have a clean surface for contact between the solution and the material.
Explanation:
The presence of impurity on the surface of the material, and lack of surface uniformity (smoothness) can reduce the effective contact between material and solution and can interfere with the electroplating process's success.
First I would have a pot of soil and a carrot (without fertilizer) then a pot of soli ,with fertilizer and a carrot. Then I would watch them for the same amount of time and identify weather the soil impacted the decomposition of the carrot and repeat this twice.
Same size pots
Same size carrots
Same soil
Same growth area
Sr, because they are just basically asking for it so it is just Sr
