S3 Biology – Interactive Biology Learning Platform
S3 Biology
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208
82
Pb
Lead
Type
Other nonmetal
Group / Period
1 / 1
Phase @ STP
Gas
Common Ions
H
+
→
Hydron
H
-
→
Hydride
Avg. Atomic Mass
1.008
Configuration
1s
1
1
p⁺ Protons
0
n⁰ Neutrons
1
e⁻ Electrons
Key Isotopes
1
H
0 n
0
Stable
2
H
1 n
0
Stable
3
H
2 n
0
Radioactive
Oxidation States
Common
Possible
+1
-1
Electronegativity
2.20
Pauling
Density
0.0899
g/L
Melting Point
-259.1
°C
Boiling Point
-252.8
°C
Atomic Radius
53
pm
Discovery Year
1766
Discovered By
Henry Cavendish
Named By
Antoine Lavoisier
STSE Context
Energy transition (Fuel Cells)
Hydrogen as energy carrier
Heavy Water (D₂O) • CANDU
Common Uses
Ammonia Production • Hydrogenation
Hazards
Highly Flammable • Explosion Risk
Charge
Type
Noble Gas
Phase
Gas
Group
18
Period
1
Chemical Property
Amphoteric
Subatomic Particles
Properties & Structure
Melting Point
13.99 K
Boiling Point
20.27 K
Density
0.089 g/L
Electronegativity
2.20
Atomic Radius
53 pm
Electron Configuration
1s¹
Reaction Prediction
Common Uses & Hazards
⚡
Uses
Batteries, Radiation Shielding (X-Ray), Construction
⚠️
Hazards
Neurotoxin (Brain/Nerve damage), Bioaccumulation
H
Stop
×
Na
Sodium ion
Type
Cation
Source
Monatomic
Phase @ STP
--
Valence Electrons
+1
Role
--
Avg. Atomic Mass
--
Protons (p
+
)
--
Electrons (e
-
)
--
Key Isotopes
Coming Soon...
Molar Mass
1.007 g/mol
Protons (p
+
)
1
Electrons (e
-
)
0
State in Water
Bonds instantly to form H₃O⁺
Indicator Test
Hover
Blue Litmus turns Red
Reactivity
Add Carbonate: CO₂ bubbles
Configuration
--
Oxidation States
Common
Possible
--
Electronegativity
--
Pauling
1st Ionization
--
Discovery Year
--
Common Uses
--
Hazards
--
COMING SOON
3D Ion Models & Interactivity are under development.