Label each size first (charges like Na⁺), then drag the particles into place. Tap ? for help.
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Medium
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Large
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Charge
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Electrons in the sea delocalized e⁻
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Build a particle diagram, in four moves
Name each size. Type a label for the small, medium, and large particles — element symbols or charges like Na⁺ and Cl⁻. Use the ⁺ ⁻ ² ³ keys for superscript charges.
Set the counts. Bump each size up with the + steppers, then drag the particles into the arrangement you want.
Go metallic. Flip on Sea of e⁻ to shade the field and scatter delocalized electrons — the picture of metallic bonding.
Copy it. Hit Copy image and paste your diagram straight into a doc, slide, or quiz.
Neat freak? Flip on Snap to grid to click particles into a tidy lattice — perfect for ionic crystals and close-packed metals. Set Background → Clear to copy a see-through diagram. Snapping only tidies placement; it never decides how many particles you use.
