Neon vs Neptunium

Side-by-side comparison of element properties

Ne

Neon

Atomic Number 10

Noble Gas

Np

Neptunium

Atomic Number 93

Actinide

Property Comparison

Property	Neon	Neptunium
Atomic Mass	20.1800 u	237.0000 u

Neon

Block: p-block
Period: 2
Group: 18
Phase at STP: Gas
Config: [He] 2s2 2p6

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Neptunium

Block: f-block
Period: 7
Phase at STP: Solid
Config: [Rn] 5f4 6d1 7s2

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Ratios

Mass Ratio (Ne/Np)

0.085