Which electron configuration matches this model? 0 1s22s2p2
0 1s²2s2p3
O 1s²2s²2p4
1s22s²2p5

1s2 2s2 2p5

is the correct answer

Explanation:

Hi there!

From the figure;

We can figure out that the atomic number is 7.

So;

Option A: 1s² 2s² 2p²

Sum of the powers of variable is just 6. So, it's not answer.

Option B: 1s²2s²2p³

Sum of the powers of variable is 7. So it's the answer

Option C: 1s²2s²2p⁴

Sum of the powers of variable is 8. So, it's not answer.

Option D: 1s²2s²2p⁵

Sum of the powers of variable is 9. So, it's not the correct answer.

Therefore, answer is option B.

Hope it helps!

answer : (a) volume of the gas = 8.67 ×   l

                (b) second virial coefficient b = -1.21226 l/mole

solution :   given,     t = 300k

                                p = 20atm

                                z = 0.86

                                n = 8.2 mmoles = 8.2 × moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :            

                          and            

(a)            

                    = \times 0.082\times 300}{20}[/tex]

                    = 8.67 ×   l

(b)      

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole