Because i think melting is kinda the biproduct of evaporation.
Answer:
A) Electrons
A) 16-8=8 so it'd be 8
(Relative atomic mass - atomic number = neutrons)
A) 12
Same thing as last one.
31-15=16 ( did you type the wrong options if not then huh?)
Explanation:
The law conservation of mass, because part of the mass can be converted into energy
also, the elements are changing during nuclear reactions, new elements are formed
<u>Answer:</u> The percentage abundance of oxygen-16 isotope is 99.76 %
<u>Explanation:</u>
We are given:
Three isotopes of oxygen are there, O-16, O-17 and O-18
Mass of Oxygen-16 isotope = 15.995 amu
Mass of Oxygen-17 isotope = 16.999 amu
Mass of Oxygen-18 isotope = 17.999 amu
Percentage abundance of Oxygen-17 isotope = 0.04 %
Percentage abundance of Oxygen-18 isotope = 0.2 %
We know that:
Percentage abundance of all isotopes together is 100 %
So, Percentage abundance of Oxygen-16 isotope = [100 - (0.04 + 0.2)] = 99.76 %
Hence, the percentage abundance of oxygen-16 isotope is 99.76 %