Rubidium

Luke Sayre

History

It was discovered in 1861 by Robert Bunsen and Gustav Kirchoff as an impurity associated with samples of the mineral lepidolite (a form of mica). The name rubidium is Latin "rubidus" - dark red.

3 properties

- Density 1.53 g. cm-^3 at 20 C

- Boiling point 696 C

- Melting point 39 C

Uses

Used in Vacuum Tubes as a getter

Uses in Fireworks

Used as a propellant in Ion engines on spacecraft

Compounds

Rubidium Chloride - RbCl

Rubidium Monoxide- Rb subscrip 2 O

Rubidium Copper Sulfate - Rb subscript 2 SO, CuSo, 6H subscrip 20

Atomic Number / Mass

Atomic Number- 37

Atomic Mas- 85.4678 g. mol ^-1

Atomic Structure

Protons- 37

Neutrons- 48

Electrons- 37

Nuclide Notation

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Hyphen Notation

Rb-85
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Valence electrons

1
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5 Properties of Alkali Metals

-1 valence electron

-Very soft

-low density

-low melting point

-low boiling point

Reaction type

S

Equation

4 Rb + O2 = 2 Rb2O
Brainiac Alkali Metals

Mole Ratio

4-Rb

2 -o

Compound Formula

O4rb2S

Compound Name

Rubidium Sulfate

Bond

Covalent bond

Acrostic poem

R- red

U- umbrella

B- beat

I- I

D- dont

I- in

U- up

M- man