In which orbital does an electron in a silicon atom experience the greatest effective nuclear charge? a. 3p.
b. 2s.
c. 3s.
d. 1s.
e. 2p.

the answer is 1 i believe

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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