Skip to content

Search the chemistry universe

Elements, molecules, concepts, simulations, experiments and pages.

Enter a formula, name or conceptFull search

Potassium atom & ion lab

Change the electron count of Potassium and inspect its charge, shells and reviewed atomic properties.

SchoolLive

Scientific learning path

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

Core label represents the fixed nuclear charge; individual neutrons are not inferred from standard atomic weight.

Reviewed atomic properties

Unavailable measurements remain explicitly unavailable.

First ionization energy418.8 kJ mol⁻¹
Covalent radius203 pm
Electronegativity0.82 Pauling

Description of this simulation

Potassium is neutral here: 19 protons are balanced by 19 electrons across shells 2, 8, 8, 1.

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?

K

Potassium

Z = 19
Protons
19
Electrons
19
Shells
2 · 8 · 8 · 1
Configuration
[Ar] 4s1
Common oxidation states
1
Phase near room conditions
solid

What this model shows — and what it simplifies

Educational Model

The nuclear charge stays fixed at 19 protons, which is what defines Potassium.

Where do we see this in real life?

The electron count and measured properties of Potassium help determine how it bonds, reacts and is identified in chemical materials.

Explain this result

Scientific review record

Building
Module version
v1 bundled
Published
Loading…
Last reviewed
Not yet verified
Academic level
School
Reviewer
Not publicly assigned

Loading source metadata…

Review method · Report an error