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Valence-electron counter

Count the electrons available for bonds and lone pairs.

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Scientific learning path

  1. 01UnderstandLive
  2. 02ExploreLive
  3. 03ExperimentLive
  4. 04ObserveLive
  5. 05ExplainLive
  6. 06ApplyLive
  7. 07TestLive
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Water

H2O

Module 7 of 13

0°

Description of this simulation

Water (H2O): Valence-electron counter — 8 electrons. Two lone pairs compress the H–O–H angle and leave a strong net dipole.

Quick test · 3 questions
1. Which statement is evidence from this simulation?
2. How should you test the effect of one control?
3. Why read the model notes?

Live result

8 electrons

Two lone pairs compress the H–O–H angle and leave a strong net dipole.

Molecule at a glance

Geometry
Bent
Symmetry
C₂v
Polarity
Polar
Bond angle
104.5°

What this model shows — and what it simplifies

Educational Model

Total valence electrons are the sum of the neutral atoms’ group valences.

Where do we see this in real life?

Electron counting is the bookkeeping behind Lewis structures, oxidation states and the first prediction of molecular reactivity.

Explain this result

Scientific review record

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