Part A When writing a complete electron configuration, you...

Part A When writing a complete electron configuration, you write the filled sublevels in order first, and then if there is a partially filled sublevel, you write it last in the sequence. You can identify the last sublevel containing electrons by finding the element in the periodic table, and determining which block and sublevel the element corresponds to. Identify the last occupied sublevel, which can be completely or partially filled, for each of the following elements. Drag the appropriate items to their appropriate bins. View Available Hint(s) Lu Cl K Mg Mn Hg Cm Sb Reset Help 3s 3p 3d 4s 4f 5p 5d 5f

Transcript

00:01 Hi there.

00:02 For problem number 82, i am going to do my best here to recreate something that looks like the periodic table.

00:28 Okay, that's my best effort here.

00:37 Of course, our period one elements up here, hydrogen and helium.

00:43 So my periods run from one to seven.

00:47 And of course, this is my s block, s1 and s2.

00:54 These are my p block elements over here, p1 through p6, ignoring helium because it only has two valence electrons.

01:03 And then my transition metals here are going to be my d block.

01:07 And i left the f block off of here because i don't believe i need them for this problem.

01:12 All right.

01:13 So let's see what we need to do here.

01:17 I want, for letter a, i want to find a noble gas in the fifth period.

01:22 So my noble gases are of course the last group on the periodic table.

01:32 And i see my boxes are going to be a little out of skew here.

01:36 But we have one, two, three, four, five.

01:42 So letter a, and i want to number my periods from one to five, and i want the noble gas.

01:52 So letter a would be right here.

01:54 It doesn't ask us to identify what specific element it is, because it doesn't want us choosing a periodic table.

02:00 So i'm just going to put letter a is going to be my noble gas in the fifth period there.

02:09 All right, letter b, we are looking for an element in the sixth period that has three electrons that don't have a partner.

02:24 So i'm looking for unpaired electrons.

02:28 Of course, we have p2, we have p3, p4, and p5.

02:38 So if i'm looking in p3, let me do my best to add a group here for p3.

02:48 And i am looking for the element that has these three unpaired electrons...

Question

Please give Ace some feedback