Sketch a periodic table (without element symbols). Include the correct number of rows and column

Sketch a periodic table (without element symbols). Include...

Key Concepts

Irregular Electron Configurations

Some elements exhibit irregular electron configurations where the electrons occupy orbitals in a pattern that deviates from the expected order predicted by the Aufbau principle. This irregularity often arises because a half-filled or fully filled orbital offers an extra stability compared to what might be predicted, leading to configurations that are energetically more favorable. Highlighting these exceptions emphasizes the nuanced nature of electron interactions within atoms.

Periodic Table Layout

The periodic table is organized into rows called periods and columns known as groups. This layout reflects trends in the chemical properties of elements and aligns with the elements’ increasing atomic numbers. The table is also divided into different blocks based on the electron subshell that is primarily being filled—these include the s, p, d, and f blocks, which indicate the orbital type occupied by the valence electrons.

Electron Configuration and Orbital Blocks

Electron configuration describes the distribution of electrons among the various atomic orbitals. The periodic table organizes elements into blocks where each block corresponds to the filling of a specific orbital type: s-, p-, d-, and f-blocks. Each block features a distinct number of rows and columns that correspond to the number of available orbitals and electrons that can be accommodated, reflecting the underlying quantum mechanical structure of atoms.

Transcript

00:01 Chapter 3, problem 138 says sketch periodic table without element symbols and include the correct number of rows and columns and the spd and f blocks, then shade in the squares for elements to have irregular electronic configurations.

00:15 This is going to be fairly difficult to make sure that it's as accurate as possible, but we're going to try our best.

00:23 Maybe i should begin with numbering.

00:25 We know that we have seven periods, so that keeps us organized.

00:42 This way and then we know that there are 18 groups and that there's a drop here and we begin back going this way to make this a bit more straight and then we go back up but only to the second period or second it's second period so then we have the remaining some people see right this is 13 14 15 etc other people see it is 3a 4a 5a either way it's the same thing.

02:03 All right.

02:17 All right.

02:19 Now we can't forget that f -block.

02:29 So we're going to go ahead and add that here.

02:44 And bring it up.

02:48 So this is group, the period six and seven.

02:55 And there's 14 of them.

02:59 So i'm just going to remember the top parts, one through 14, even though we traditionally won't see the numbers here.

03:05 So you know, i'll do it in a different color.

03:29 And again, i'm writing this in a different color, because this does not correspond with our traditional idea of the members, but there are 14 columns in f blocks.

03:39 I want you to be able to see that quickly.

03:42 All right.

03:43 So this is our rough drawing of the periodic table.

03:47 And the question is asking us to label the f block, the p block, the d block, and the f block.

03:53 So let's go ahead and do that, and we'll do that with colors.

03:57 Our s is going to be in black...

Please give Ace some feedback