An atom containing 16 protons, 31 neutrons, and 16 electrons would
have an atomic mass of
a. 16 amu.
b. 33 amu.
c. 47 amu.
d. 64 amu.

how do i calculate atomic mass?

Question

An atom containing 16 protons, 31 neutrons, and 16 electrons would
    have an atomic mass of
    a. 16 amu.
    b. 33 amu.
    c. 47 amu.
    d. 64 amu.


how do i calculate atomic mass?

anonymous · Answer

@aaronq @HelpBlahBlahBlah 

any suggestions?

helpblahblahblah · Answer

im not sure sorry

anonymous · Answer

it's ok :)

ipwnbunnies · Answer

Sigh, I'm pretty sure I'm right, but I would hate to give you the wrong answer. The mass of an atom only accounts for how many protons and neutrons it has. Electrons' mass are insignificant when talking bout the mass of an atom.

ipwnbunnies · Answer

The mass of protons and neutrons are about the same, so the mass of 1 proton or neutron is 1 atomic mass unit, or 1 amu.

anonymous · Answer

alright, so could you help me calculate? (and it's ok if your wrong, you're righter than me XD)

ipwnbunnies · Answer

Simple addition man. How many protons and neutrons do you have?

anonymous · Answer

with protons being irrelevant, it would be 47 amu

ipwnbunnies · Answer

No, electrons are irrelevant to the mass.
You are lucky you got the same answer doh.
16 protons + 31 neutrons = 47 particles = 47 amu

anonymous · Answer

thank's for the help! ^-^oh. electrons. ok XD

anonymous · Answer

thats what i meant. I know what i meant! XD