How many valence electrons does Be+2 have?

The bond order for Be2 is 0 (zero). The valence shell of each beryllium atom is 2s2 so there are a total of four valence shell electrons for which we Additionally, does be2 2+ exist? From the electronic configuration it is clear that there is no singly filled atomic orbital present in beryllium. Hope ths helped :)

Explanation:

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

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explanation: