Orbital Box Diagram Homework

Unformatted text preview: /Orbital Diagrams Name Nora- L_ Chem Worksheet 5-5 An orbital diagram uses boxes with arrows to represent the electrons in an atom. Each box in an orbital diagram represents an orbital. Orbitals have a capacity of two electrons. Arrows are drawn inside the boxes to represent electrons. Two electrons in the same orbital must have opposite spin so the arrows are drawn pointing in opposite directions. The following is an orbital diagram for selenium. Se: 2: 3p 45 3:! 2p . . . Electrons fill the lowest Two electrons in the some orbital Each orbital ts half-filled available energy levels first. must have opposite spin. before being completely filled. In writing an orbital diagram the first step is to determine the number of electrons. Normally this is the same as the number of ' protons, which is known as the atomic number. Next the boxes are 5 “New: D 1 “mm drawn for the orbitals. Arrows are drawn in the boxes starting from p sublevel: DEC] 3 orbitals the lowest energy subleyel and working up. This is known as the d sublevel: DECIDE! 5 orbitals Aufbau rule. The Pauli exclusion principlc_requires that electrons bl l_ EMBEDDED 7 bitals in the same orbital have opposite spin. Hund’s rule states that f5“ eve ' or orbitals in a given sublevel are half-filled before they are completely filled. @) This violates Hit/id’s rule. One electron 3s 1 s 25 2’, should be distributed to each of the 3p orbitals before doubly filling any. Boxes drawn for various sublevels Write the name and symbol for the elements withthe following orbitalfidiagrams. . _ 1- 4- I: 3 2p 3s 3p 45 Is 25 2/) 3s 3p 43 3d Cod Cw m C...o\ 2. Cl 0 : Cw‘om ls 2.! 2p :— ntebfl \ 3. S L bUlFuf 'i A 'Q'W‘ is 24‘ p 5 3p 5 5f ‘ There is an error with each of the following orbital diagrams. Explain the error. 7. [Ar] Amos 8. 4s 3d A 4p \0'D gait“ ls _, 2p 33 3p (KC GflDw M 3b?) Mr ‘A‘ ngNtNB Write orbital diagrams for the follOwing. You may abbreviate using a noble gas. 9. hydrogen 15. carbon 10. bor'on 16. cobalt 11. sodium 17. platinum 12. krypton 18. plutonium 13. chromium 19. oxygen 14. phosphorus 20. potassium Chemistry “3-; J ,3f}<‘l}fffif"l‘ he)"; "(i175 fl, _ H _ 1m; ” # M ‘* ‘ _ “ \m1"iiaigmxcf_f.-.__.. ,, _+ j‘ f_ __ fl [Av] 34 7 ’ __ __m_ 33.; >9; * ' ,___q___w____m__;“ T: i“ mmw “‘__~_W_.._m_h___j““ ‘ “ m __ flaw] @gfiaflw guff‘fS'ifiéi EL " EBB] 5 F5” “‘ ...
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Orbital diagram questions

When asked to draw an orbital diagram of an electron configuration, you may see the following set of icons. These icons represent subshells. (Keyboard shortcuts are not applicable.) Complete orbital diagram questions on a computer, not on a smartphone.

If the buttons on your chemical drawing question look different: See alternate instructions for drawing with either the Marvin chemical editor or a basic chemical editor.

To create an orbital diagram
  1. Click a subshell label/designation icon so that this subshell appears in your workspace.
  2. Add electrons by clicking on the line segment(s) next to the subshell label/designation.
  3. Continue to add subshells, starting with subshells with the lowest energy level and ending with those with the highest energy.
  • Before you submit your answer: Check that the orbitals with the highest energy levels are at the top and the ones with the lowest energy are at the bottom. (How to reorder your list)
  • For more details about working with orbital diagrams: See the table below.

To get this effect

Take this action

Add a subshell

Click the icon for the appropriate number and orbital shape (s, p, d, or f). For example, clicking the 3p icon adds the following to your workspace:


As you add a new subshell, it appears at the top of the workspace list.

Add electrons to a subshell

Click on the line segments to the right of the subshell label to add vertical arrows to each orbital. The arrows represent electrons. For example:


You can add up to two electrons per line segment.

  • The first electron:
    Appears on the right, represented by an arrow that points upward.
  • The second electron:
    Appears on the left, represented by an arrow that points downward.

Clear your workspace

Click this icon:

Delete a subshell

  • From the icon panel: Click the same icon again.
  • From the workspace: Place your cursor over the subshell untill you see a red X on the left. Then, click to delete that subshell.

Delete electrons

Click the arrows on the appropriate line segment to the right of the subshell label. The arrows represent electrons.


When you click on a line width:

  • One arrow: A second arrow will be added. Clicking again will delete both arrows.
  • Two arrows: Both arrows will be deleted.

Reorder subshells

To move any subshell in your workspace:

  1. Place your cursor on the subshell until a double-headed vertical arrow (2)appears on its left.

  2. Click and drag this subshell to its new position, whether up or down.

    If you see a red X next to the subshell instead of the arrow: Clicking on an item that has a red X to its left will delete that item.

To view this Help topic as you work

Click the ? help icon.

To print this Help topic

Choose Print in the upper right of this Help page.
The topic will print as it appears online. To print the complete topic, choose Expand all before printing.

See also:

Open an assignment and begin work on it | Submit assignment answers | Answer box options besides Submit


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