Which of the following best describes the valence-electron configuration of the group 3A elements?

Which of the following best describes the valence-electron configuration of the group 3A elements?
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Which of the following best describes the valence-electron configuration of the group 3A elements?
ns2np1
ns2np2
ns2np3
ns2np4
Diborane
The chemical formula for diborane is B2H6. Each of the boron atoms in a diborane molecule is sp3 hybridized, but they are not connected to each other, only to hydrogen atoms. Two of the hydrogen atoms in diborane take on an unusual bonding arrangement in which they form two bonds each in a cyclic B−H−B−H ring. The other four hydrogen atoms have the typical bonding arrangement of one bond each.
Part C
Draw a diborane molecule.
Click the button labeled More to bring up the periodic table, or double click on an existing atom and type the symbol B to create a boron atom.
Draw the molecule by placing atoms on the grid and connecting them with bonds.
What is the oxidation state of the H
 atom in H
2
 in equation 2NaCl(aq)+2H
2
O(l)→H
2
(g)+Cl
2
(g)+2NaOH(aq)
?
Express your answer as a signed integer.
Submit
 
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