Answer:
Step-by-step explanation:
im pretty sure it is 768/187.5 = about 4
because you are taking the highest number and putting it over the lowest number
Answer:
14
Step-by-step explanation:
9 10 11 12 13 14
There are 13 protons because the atomic number (the number in the top left corner) represents the number of protons. Then, to find the number of neutrons, you take the number of protons and subtract it from the atomic mass (the number on the bottom) when it is rounded. The number of electrons is the same as the protons when the atom is neutral
4(d-1), if you expand it gets 4d-4.
