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Chapter 41: Q. 12 (page 1207)

Draw a series of pictures, similar to the ground states of $K, S c, C o$ and $G e$ .

Short Answer

Expert verified

The ground states of $K (Z = 19)$ is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s$ , $S c (Z = 21)$ is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d$ , $C u (Z = 29)$ is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{10}$ and $G e (Z = 32)$ is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{10} 4 p^{2}$ .

Step by step solution

01

Given Information

We need to find the ground states of $K, S c, C o$ and $G e$ .

02

Simplify

The electron configuration for $K$ $(Z = 19)$ is :

$1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s$

The electron configuration for $S c (Z = 21)$ is :

$1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d$

The electron configuration for $C u (Z = 29)$ is :

$1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{10}$

The electron configuration for $G e (Z = 32)$ is :

$1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{10} 4 p^{2}$

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Most popular questions from this chapter

An electron accelerates through a $12.5 V$ potential difference, starting from rest, and then collides with a hydrogen atom, exciting the atom to the highest energy level allowed. List all the possible quantum-jump transitions by which the excited atom could emit a photon and the wavelength (in nm) of each.

In LASIK surgery, a laser is used to reshape the cornea of the eye to improve vision. The laser produces extremely short pulses of light, each containing $1.0 m J$ of energy.

a. There are $9.7 \times 10^{14}$ photons in each pulse. What is the wavelength of the laser?

b. Each pulse lasts a mere $20 n s$ . What is the average power delivered to the cornea during a pulse?

$1.00 \times 10^{6}$ sodium atoms are excited to the $3 p$ state at $t = 0 s$ . At what time have $8.0 \times 10^{5}$ photons been emitted ?

For an electron in the $1 s$ state of hydrogen, what is the probability of being in a spherical shell of thickness $0.010 a_{B}$ at distance (a) $\frac{1}{2} a_{B}$ , (b) $a_{B}$ , and (c) $2 a_{B}$ from the proton?

How many lines of atoms would you expect to see on the collector plate of a Stern-Gerlach apparatus if the experiment is done with
(a) lithium and

(b) beryllium? Explain.

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