Answer:
ones with ionic bonds
Explanation:
they have high melting and boiling points
<span>According to octet rule, atoms with an atomic number less than 20 tend to combine with other atom such that both of these atoms have eight electrons in their valence shells, which gives them the same electronic configuration as that of noble gas.
However, there are few compound that donot obey octel rule. Among the elements mentioned above i.e. oxygen and helium obeys octet rule.
In case of nitrogen, oxide of nitrogen (like NO and NO2) have incomplete octet.
While there are few compounds of Br wherein Br has expanded octet. For example, in BrF5, Br has 12 electrons in valence shell. </span>
Answer:
87 (whatever unit its using)
You might want to elaborate on this
Answer:
3.00
Explanation:
Since assuming oxygen as molecule so there are 6 atoms hence 3 molecules of oxygen hence 3 moles