Answer:o It is important to realise that mixing will be small unless there are electrons in the 4a1 LUMO, this is why NH3 is pyramidal while BH3 is planar! ... This mixing is very strong and stabilises the 3a1 MO substantially and hence NH3 is trigonal pyramidal and not planar.
Explanation:
D. a compound can only be separated into its components by chemical means
Answer:
20 neutrons
Explanation:
(not really any just look at a periodic table)