How many Valence electrons and energy shells does Ge have? A.4 Valence Electrons and 6 Energy shells
B.7 Valence Electrons and 3 Energy shells
C.2 Valence Electrons and 6 Energy shells
D.4 Valence Electrons and 4 Energy shells

D. 4 Valence Electrons and 4 Energy shells

Explanation:

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In this case, since finding the number of valence electrons and energy shells require the determination of the electron configuration for the element, knowing that germanium has 32 electrons (atomic number), we have:

We can see that the outermost energy shell is 4 which storages 4 electrons (2 from 4s and 2 from 4p); therefore, we infer it has 4 valence electrons and 5 energy shells, so the answer is:

D. 4 Valence Electrons and 4 Energy shells.

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the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.