Periodic System for Chemists

Your periodic table, always with you.

Use it offline. Find elements quickly. Keep favorites and personal notes on iPhone and iPad.

Back to Protactinium

Protactinium Density

Pa - Atomic Number 91

Density
15.4 g/cm³
Ranking:
#21 of 118
Highest
Hs: 40.70
Lowest
H: 0.00

About the Density

Mass per unit volume at room temperature and standard pressure.

Top 10 by Density

Unit Conversions

g/cm³ 15.400
kg/m³ 15400.00
lb/ft³ 961.39

Top 10 by Density

#1 Hs Hassium
40.70 g/cm³
#2 Mt Meitnerium
37.40 g/cm³
#3 Bh Bohrium
37.10 g/cm³
#4 Sg Seaborgium
35.00 g/cm³
#5 Ds Darmstadtium
34.80 g/cm³
#6 Db Dubnium
29.30 g/cm³
#7 Rg Roentgenium
28.70 g/cm³
#8 Rf Rutherfordium
23.30 g/cm³
#9 Os Osmium
22.59 g/cm³
#10 Ir Iridium
22.56 g/cm³

Related Properties

Melting PointBoiling PointPhase at STPCrystal Structure

iPhone & iPad

Your periodic table, always with you.

  • Access element data offline, in the lab or in class.
  • Find elements quickly by name, symbol, or atomic number.
  • Save favorite elements and add your own notes.
Published App Store screenshots: periodic table, element details, and search (English).