Explanation:
Uhueududihvehdisuheisiehebhdud
Li3PO4
Cs3N
KL
BaF2
BaO
Reaction of. An acid and a base so it consists of an cation and anion so then you take the name of the anion and then the name of the cation take the atomic symbols and depending on the group it’s in add the numbers ? I think x
Moving the electron away from the nucleus requires energy, so the electrons in the outer shell will have more energy than ones in the inner shell. Electrons always have a charge of -1, so the charge in the inner and outer shell will be the same. Therefore the answer is 3
To find the atomic mass, multiply the individual atomic masses with their relative abundances and add them up.
10.012*0.1991 + 11.009*0.8009 = 10.810 amu (5 s.f.)
Element X is Boron.
