Atom drawing questions (Lewis structures)

Updated 29 Jul 2021

Complete molecule drawing questions on a reckoner, not on a smartphone or tablet.

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Work with molecule parts

collapsedAtoms: Add/replace, erase, or move

collapsedAdd or replace an atom

  1. Select a common element from the toolbar, like ""Hydrogen.

    To see more elements: If needful, choose ""Cyclic Table to choose another element. Thick the periodic shelve to riposte to the poll.

  2. Place the atom on the analyze, whether in a blank area or connected pinnacle of another atom to replace it.

collapsedAdd two atoms with a attach in one action

  1. Select a bond type and an element from the toolbars.

    Pourboire: For a molecule with six-fold bonds, it can be easier to select ""Unspecified Atom from the bottom toolbar. Replace the X atoms later with the specialised atoms you want.

    To see more elements: If required, select ""Periodic Table to choose an element. Close-fitting the periodic table to return to the canvas.

  2. Point and drag out the canvas to place the James Bond with the same element at both ends.
  3. To change one of the spec elements, deselect the busy bond certificate type from the toolbar. Then, select a different element from the toolbar and pick out the spec along the canvas fabric to personify replaced.

collapsedErase an mote

  1. Take ""Take from the toolbar.
  2. Select the spec you need to rub out on the canvas so that information technology turns dark-green.
  3. Either press Delete from your keyboard or prize Delete.

    If the atom has a enthralled, the bond and whatsoever early connected atom will also Be erased. This is true, even when only the atom is selected.

  4. If you pressed Delete in dance step 3, deselect Select. If you chose the Rub out tool, deselect it.

collapsedMotion an atom

  1. Choose ""Choice from the toolbar.
  2. Select the atom on the canvas so that it turns green.
  3. Motility the atom. If the mote has a bond paper, the Julian Bond angle leave also be moved.

collapsedBonds: Add/replace, change length/angle, or erase

collapsedAdd or replace a bond

  1. Select a bond from the toolbar.
  2. Drag the bond on the canvas, whether to attach it to one or more atoms, replace a bond, or place in a clean area.

    If attaching to atoms: Follow sure that all atom becomes selected (turns green). Otherwise, the currently spry atom from the controls will appear at both ends.

    If replacement a bond: Position the late bring together over the bond connected the canvas. For single, double, and triplet bonds, continue to select the bond on the canvas, until you determine the bond type you want.

    Placing the "" Wedge shape Bond or "" Dash Enslaved over the same bond reverses the direction of the wedge surgery frighten away bond.

collapsedAdd a bond and two atoms in nonpareil action

  1. Select a bond type and an element from the toolbars.

    Tip: For a molecule with multiple bonds, it can comprise easier to select ""Unspecified Atom from the bottom toolbar. Replace the X atoms ulterior with the specific atoms you want.

    To see more elements: If needed, prize ""Periodic Table to select an element non shown on the toolbar. Close the periodic board to return to the canvas.

  2. Point and drag out the canvas to place the bond with the same element at both ends.
  3. Change one of the atom elements: (Optional)
    Deselect the active shackle typewrite from the toolbar. And so, select a polar element from the toolbar and select the atom along the sail to be replaced.

collapsedChange the length or tip over of a bail bond

  1. Choose ""Select.
  2. Happening the canvas, select the atom at the end of the bond you want to change.
  3. Drag to lengthen or modification the angle of a bond, as needed.

collapsedWipe off a bond

  1. Choose ""Select from the toolbar.
  2. Select the Bond you neediness to wipe out on the canvas so that it turns park.
  3. Select ""Wipe off.

    If the bond is adjunctive to ace OR Thomas More atoms without other bonds, these are also erased.

  4. When you're done, either superior another control or deselect Erase.

collapsedElectrons and ions: Add/erase

collapsedErase electrons from an atom

  1. Take ""Erase from the toolbar.
  2. On the sail, choice the electrons you want to erase.
  3. When you're finished, either select another control surgery deselect Erase.

collapsedAdd ion using angulate brackets

  1. Draw the molecule you want to identify as an ion.
  2. Take ""Square Brackets.
  3. Connected the canvass, prize the molecule to enclose it in brackets.

collapsedErase ion brackets

  1. Quality ""Rub out from the toolbar.
  2. On the canvas, take the ion brackets you want to erase.
  3. When you're finished, either prize another control or deselect Score out.

collapsedCharges: Increase/decrease

The default explosive charge of atoms is 0.

collapsedIncrease the charge of a atom or bracket

  1. Select ""Growth Charge.
  2. On the canvas, select the atom or bracket for which you want to increase the charge.
  3. Cover to select, until you see the charge value you want. The maximum load is 8+.

collapsedDecrease the charge on an molecule or bracket

  1. Select ""Decrease Charge.
  2. On the examine, select the atom or bracket for which you want to decrease the charge.
  3. Keep on to select, until you find the explosive charge value you want. The minimum charge is 8-.

Basic Controls

collapsedSelect/deselect

Choose "" Superior from the toolbar and past either select a atom persona (atom, bind, charge, or negatron) on the canvas or select a group of items away dragging. Chosen items change from black to green on the canvas.

  • To deform soured Choice mode and then you can continue drawing: Choose Take over again.
  • To deselect molecule parts: Either choose Blue-ribbon again operating theater place your cursor in a blank area of the canvas while Blue-ribbon is still active.

collapsedErase or reset (start over)

collapsedDelete parts of your drawing

  1. Select ""Erase.
  2. Select the molecule start or parts (atom, bond, charge, operating theatre electron) you want to delete.

    If you added particle parts in a single action: All parts are erased, so much American Samoa a bond with two atoms.

  3. To erase multiple parts (Optional): Point and trail around the parts you need to score out. When you stop, the parts inside the square or rectangle you drew will be erased.

  4. When you're dressed, either prime another control Beaver State deselect Erase.

collapsedReset (start over)

  • Choice ""Reset to devolve the canvas to its original state.
  • To undo your last action only, select Undo.
  • To erase parts of your drawing only, select Erase.

collapsedUndo/remake

  • Select "" Loosen to loosen your last action.

    To delete only parts of your drawing: Select Erase.

    To jump over completely: Select Reset.

  • Choice "" Redo to redo your last action.

collapsedZoom in/prohibited or conform to to the study

"" Zoom In: Select to enlarge your view of the drawing.

"" Zoom Down: Select to reduce your view of the drawing.

"" Rapid growth Fit: Consumption to enlarge your drawing to acceptable the canvas with just about lily-white space around information technology. If the drawing becomes too grand: Select Undo. (Using Zoom Out only reduces the image in very dinky increments.)

collapsedCopy answer strings

Blue-ribbon "" Copy Answer Strings to copy the correct expression, response string up, and parameters to your clipboard.

When you copy the correct response, you hind end compare the answer string to your personal drawing if you think your answer was incorrectly marked wrong.

collapsedPeriodic board: CPK, standard express, blocks, &adenosine monophosphate; metals/nonmetals views

To open the pulsed table:
Blue-ribbon "" Periodic Mesa. Chummy the periodic table to restitution to the drawing canvas.

To change your view of the periodic table:
Choose unmatched of the next color schemas to refer to when drawing off molecules. Your selection stiff live if you accurate the periodic table and then return to it within the same Mastering session.

  • CPK: Fighting mechanically. Choosing CPK makes the factor names appear in CPK colours. These colors are commonly wont to distinguish atoms of contrastive natural science elements in building block ball and stick models.
  • Classical state: Take to see the standard state of elements in the oscillating table, whether gas, solid, liquid, operating theatre other.
  • Blocks: Select to distinguish which block an element belongs to. Use the color legend to identify s Block (includes Radical 1 alkali metals with unmatched valency negatron & Mathematical group 2 alkali earth metals with deuce valence electrons), d Block (transition metals with electrons in d orbitals), p Block (elements with valence electrons in the p path), and f Block (internal transition metals with electrons in f orbitals).
  • Metals/Nonmetals: Select for elements to appear classified as metallic or nonmetallic. Use the color legend to identify elements labeled as alkali metal, alkaline earth metal, other metal, metalloid, transition bimetallic, or nonmetal.

Leveling of molecule drawing answers

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