Gadolinium atom & ion lab
Change the electron count of Gadolinium and inspect its charge, shells and reviewed atomic properties.
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Scientific learning path
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Explanation mode
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 energy593.4 kJ mol⁻¹
Covalent radius196 pm
Electronegativity1.2 Pauling
The half-filled 4f7 subshell is stable enough to hold on to its seventh f electron, pushing the next electron into 5d.
Description of this simulation
Gadolinium is neutral here: 64 protons are balanced by 64 electrons across shells 2, 8, 18, 26, 8, 2.
Quick test · 3 questions
Gd
Gadolinium
- Protons
- 64
- Electrons
- 64
- Shells
- 2 · 8 · 18 · 26 · 8 · 2
- Configuration
- [Xe] 4f7 5d1 6s2
- Common oxidation states
- 3
- Phase near room conditions
- solid
What this model shows — and what it simplifies
Educational ModelThe nuclear charge stays fixed at 64 protons, which is what defines Gadolinium.
Where do we see this in real life?
The electron count and measured properties of Gadolinium help determine how it bonds, reacts and is identified in chemical materials.
Explain this result
Scientific review record
Building- Module version
- v1 bundled
- Published
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- Last reviewed
- Not yet verified
- Academic level
- Undergraduate
- Reviewer
- Not publicly assigned
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