D. It slows down
It slows down because the water keeps its from sinking
Answer:
the molar mass of the element
1 it a 2 it b 3 it c 4 it be 7 it a
The atomic number is the total number of protons in the nucleus. The mass number is the total number of particles in the nucleus. That includes the neutrons and the protons. So, the atomic number is 31. When you look at the element on the periodic table with a designated atomic number of 31, that would be Gallium, with a symbol of Ga. Mass number is 31 + 36 = 67. So, the answer is A.