Structure of the Atom | EduNudge SciLab

Select Element

Key Concepts

Protons — positive charge, in nucleus
Neutrons — no charge, in nucleus
Electrons — negative charge, in shells

Bohr's Model

🔵 Electrons orbit nucleus in fixed shells
📐 Shell capacity: 2n² rule
⚡ K=2, L=8, M=8 (first 20 elements)
🔑 Outermost shell = valence shell

Shell Capacity

Shell	Name	Max e⁻
1	K	2
2	L	8
3	M	8*
4	N	8*

* For first 20 elements

Orbital Speed 1×

Element Info

Name Hydrogen

Symbol H

Atomic No. 1

Mass No. 1

Protons 1

Neutrons 0

Electrons 1

Valency 1

Shells K=1

Isotope Explorer

Hydrogen isotopes: Protium (0n), Deuterium (1n), Tritium (2n)

Did You Know?

Hydrogen is the lightest and most abundant element in the universe!