20 u
You can’t do this without some calculation.
The easiest way is to argue that most atoms of neon have <em>10 protons</em> and 1<em>0 neutrons</em>.
Each proton and neutron has a mass of about 1 u, so the approximate atomic mass of neon is 20 u.
Answer:
true :)
Explanation:
hope this helps :)
acetic acid
