Protons and electrons are 12. For neutrons, there are 12 of them.
<span>Magnesium has an </span>atomic number<span> of 12, which means there are 12 protons.
You subtract the atomic number from the mass number in order to find neutrons.
</span>Atomic mass is 24. 24-12=12
Electrons always match the number of protons.
Answer:
Step-by-step explanation:
50% is but we're working with 64 units, not 100. So, we must find a number that represents 50 but in 64 units.
If you solve for x, you get:
Answer:
the total would be $291.10
Step-by-step explanation:
-56.80-234.30
Convert the first to an equation:
6(x+15)=-42
6x+90=-42
6x=132
x=22
Same for second equation:
4(x-7)=12
4x-28=12
4x=40
x=10
The solutions are x=22 and x=10
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