The atomic mass of an element whose atoms consist of eight protons, nine neutrons, and eight electrons is _____. (Ignore the periodic table entry for this element and only consider what the atomic mass would be given the number of subatomic particles in this question).

8
16
17
25

Question

The atomic mass of an element whose atoms consist of eight protons, nine neutrons, and eight electrons is _____. (Ignore the periodic table entry for this element and only consider what the atomic mass would be given the number of subatomic particles in this question).

8
16
17
25

anonymous · Answer

I would like to help you, but you have posted this in Biology, when the appropriate subject is Physics.

frostbite · Answer

For simplicity lets assume that protons and neutrons weight 1 unit and electrons 1/1000 of a of a proton or neutron.
So the calculation is going to be:
$$m(element)=8*m(proton)+8*m(neutron)+8*m(electron)$$
Round up or down to a whole number and you have your answer.

anonymous · Answer

@PlantMan She's taking the same course as I am. It's In  our Biology that we're learning periodic table elements.

anonymous · Answer

could it be 25?

anonymous · Answer

the answer is 17