Chemical properties – Sodium symbol, electronic configuration, density



Sodium is a soft, silvery-white, highly reactive metal and is a member of the alkali metals within group 1.It is an essential element for all animal life and for some plant species. In animals, sodium ions are used in opposition to potassium ions, to allow the organism to build up an electrostatic charge on cell membranes, and thus allow transmission of nerve impulses when the charge is allowed to dissipate by a moving wave of voltage change.

Chemical Properties.

Appearance Solid
Atomic Number 11
Block S
Boiling Point 883 °C
CAS Number 7440-23-5
Density 0.97 g/cm3
EINECS Number 231-132-9
Electron Configuration [Ne] 3s1
Group 1
Ionization Energy 495.8 kJ/mol
Melting Point 98 °C
Molar Mass 22.989 g/mol
Oxidation State +1,0,-1
Period 3
Symbol Na

Sodium producers/suppliers –


Chemical properties – Neon symbol, electronic configuration, density



Neon is a inert noble gas under standard conditions. It is commercially extracted from air, in which it is found in trace amounts. It is often used in signs and produces an unmistakable bright reddish-orange light. It is used in vacuum tubes, high-voltage indicators, lightning arrestors, wave meter tubes, television tubes, and helium-neon lasers.

Chemical Properties.

Appearance Colorless gas
Atomic Number 10
Atomic Weight 20.1797 g/mol
Block p
Boiling Point -246 °C
CAS Number 7440-01-9
Class 2.2
Crystal Structure Face-centered cubic
Density 0.9002 g/l
EINECS Number 231-110-9
Electron Configuration 1s2 2s2 2p6
Group 18
Ionization Energy 2080.7 kJ/mol
Melting Point -249 °C
Period 2
RTECS Number QP4450000
Symbol Ne


Neon producers/suppliers –