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# Write the electron configuration for each ion. What do all ISBN: 9780321910295 34

## Solution for problem 94P Chapter 9

Introductory Chemistry | 5th Edition

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Problem 94P

PROBLEM 94P

Write the electron configuration for each ion. What do all of the electron configurations have in common?

(a) F−

(b) P3−

(c) Li+

(d) Al3+

Step-by-Step Solution:

Solution 94P

Here, we are going to write the electronic configuration for the given ions.

Step 1:

F-

The atomic number of F = 9, i.e., the number of electrons = 9

Its electronic configuration = 1s22s22p5 or [He]2s22p5

Now, the number of electrons in F- = 9 + 1 =10

F + e- → F-

Thus, electronic configuration of F- = 1s22s22p6 or [Ne]

b)        P3-

The atomic number of P = 15, i.e., the number of electrons = 15

Its electronic configuration = 1s22s22p63s23p3 or [Ne]3s23p3

Now, the number of electrons in P3- = 15 + 3 =18

P + 3e- → P3-

Thus, electronic configuration of P3- = 1s22s22p63s23p6 or [Ar]

c)        Li+

The atomic number of Li = 3, i.e., the number of electrons = 3

Its electronic configuration = 1s22s1 or [He]2s1

Now, the number of electrons in Li+ = 3 - 1 = 2

Li - e- → Li+

Thus, electronic configuration of Li+ = 1s2 or [He]

d)        Al3+

The atomic number of Al = 13, i.e., the number of electrons = 13

Its electronic configuration = 1s22s22p63s23p1 or [Ne]3s23p1

Now, the number of electrons in Al3+ = 13 - 3 =10

Al - 3e- → Al3+

Thus, electronic configuration of Al3+ = 1s22s22p6 or [Ne]

Step 2 of 2

##### ISBN: 9780321910295

The full step-by-step solution to problem: 94P from chapter: 9 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. The answer to “Write the electron configuration for each ion. What do all of the electron configurations have in common?(a) F?(b) P3?(c) Li+(d) Al3+” is broken down into a number of easy to follow steps, and 21 words. This full solution covers the following key subjects: electron, common, configurations, configuration, ion. This expansive textbook survival guide covers 19 chapters, and 2045 solutions. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. Since the solution to 94P from 9 chapter was answered, more than 409 students have viewed the full step-by-step answer.

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