×

Roentgenium

☒

Cobalt

☒

ADD ⊕
Compare

X

Roentgenium

X

Cobalt

Physical Properties of Roentgenium and Cobalt

Roentgenium Metal

Roentgenium

Cobalt Metal

Cobalt

Add ⊕

1 Physical

1.1 Melting Point

NA1,495.00 °C

27 3410

1.2 Boiling Point

NA2,870.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Silver

Gray

1.3.3 Luster

Unknown Luster

Metallic

1.4 Hardness

1.4.1 Mohs Hardness

NA5.00

0.2 8.5

1.4.2 Brinell Hardness

NA470.00 MPa

0.14 3490

1.4.3 Vickers Hardness

NA1,043.00 MPa

121 3430

1.5 Speed of Sound

NA4,720.00 m/s

818 16200

1.6 Optical Properties

1.6.1 Refractive Index

NANA

1.000933 1.7229

1.6.2 Reflectivity

NA67.00 %

58 97

1.7 Allotropes

✔ ✘

✔ ✘

1.7.1 α Allotropes

Not Available

α-Cobalt

1.7.2 β Allotropes

Not Available

β-Cobalt

1.7.3 γ Allotropes

Not Available

Not Available

Compare Synthetic Metals

Roentgenium Metal

Seaborgium Electron Configuration

Roentgenium vs Seaborgium

Roentgenium Metal

Flerovium Electron Configuration

Roentgenium vs Flerovium

Roentgenium Metal

Einsteinium Metal

Roentgenium vs Einsteinium

Synthetic Metals

<%# Eval("AltText") %>

<%# Eval("AltText") %>

<%# Eval("AltText") %>

<%# Eval("AltText") %>

<%# Eval("AltText") %>

<%# Eval("AltText") %>

Synthetic Metals

Seaborgium Electron Configuration

Seaborgium

Periodi... | Physical | Chemical | Mechanical

Hassium Electron Configuration

Hassium

Periodi... | Physical | Chemical | Mechanical

Rutherfordium Electron Configuration

Rutherfordium

Periodi... | Physical | Chemical | Mechanical

Compare Synthetic Metals

Cobalt Metal

Tennessine Metal

Cobalt vs Tennessine

Periodi... | Physical | Chemical | Mechanical

Cobalt Metal

Livermorium Metal

Cobalt vs Livermorium

Periodi... | Physical | Chemical | Mechanical

Cobalt Metal

Moscovium Metal

Cobalt vs Moscovium

Periodi... | Physical | Chemical | Mechanical