Strontium vs Erbium

Side-by-side comparison of element properties

Sr

Strontium

Atomic Number 38

Alkaline Earth Metal

Er

Erbium

Atomic Number 68

Lanthanide

Bond Analysis

Electronegativity Difference

0.29

Predicted Bond Type

nonpolar covalent

Relationship

Different regions

Property Comparison

Property Strontium Erbium
Atomic Mass 87.6200 u 167.2600 u
Electronegativity 0.95 1.24

Strontium

Block
s-block
Period
5
Group
2
Phase at STP
Solid
Config
[Kr] 5s2
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Erbium

Block
f-block
Period
6
Phase at STP
Solid
Config
[Xe] 4f12 6s2
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Ratios

Mass Ratio (Sr/Er)

0.524