What is the total number of electrons needed to completely fill all of the orbitals in an atoms second principal energy level
Answer:
A
Explanation:
The mass of a compound is the sum of the masses of its component (a total is equal to the sum of its parts).
25/2 and 96/X
CROSS MULTIPLY.
2x=2,400.
divide by 2.
x=1,200.
you take the GIVEN MASS of an element, and you put it on top, the coefficient is what it’s over. i believe this is right
Your answer is 4 protons 4 electrons and 5 neutrons