2. Boron information
Symbol:B
Atomic Number: 5
Atomic Mass: 10.811
Melting Point: 2,076
Boiling Point: 3,927
Number of Protons/Electrons: 5
Number of Neutrons: 6
Classification: Semi-Metal
Crystal Structure: Rhombonearal
3. Boron information(cont.)
Density: 2.460 g/cc
Color: Brownish-black
Discoverer: Sir Humphry Davy, J.L. Gay-Lussac
Date of discovery: 1808
Name origin: from borax and carbon
Uses: heat resistant alloys
Natural state of matter: solid at standard temperature and
pressure
4. Boron Uses
Boron is use in pyrotechnics and flares to
produce a green color
Boron is used in rockets as ignitition source
Boron is used in control of nuclear reactors, as a
radiation shield and as a neutron detector.
6. Interesting or surprising fact
Boron forms several commercially important
compounds. The most important boron
compound is sodium borate
pentahydrate(Na2B4O7*5H2O)
7. My Element Box
My box shows the element Boron. It shows my
general information about Boron like: atomic
number is 5, classification is metalloid, and etc. It
also shows my poem that I made about Boron. It
has 3 pictures at the top: picture of protons/
electrons and neutrons, picture of Boron
minerals and the picture of a Boron rock. My 3d
object shows a picture of Borax laundry poster
that they use Boron chemicals in.
