Carbon is the 6th element on the periodic table. Carbon's atomic number is 6 which means it has 6 protons and 6 electrons. It's atomic mass is 12 which gives it 6 neutrons. Carbon is located at the second period of the periodic table which indicates that it has 2 orbitals of electrons. It's electronic structure is 1S2 2S2 2P2. It has 2 first orbital electrons and 4 second orbital electrons. Carbon belongs to the P block which means its P orbitals are being at least partially filled. It's 5 elements before Neon,a noble gas, which implies that carbon still has 5 empty electron spaces in its P orbitals before it's completely filled.
Carbon is a member of group 14 on the periodic table. It is nonmetallic and tetravalent making four electrons available to form covalent chemical bonds. There are several well known allotropes of carbon such as graphite and diamond. The physical properties of carbon vary widely with the allotropic form. For example, diamond is highly transparent while graphite is opaque and black. Diamond is the hardest naturally-occurring material known while graphite is soft enough to form a streak on paper (http://en.wikipedia.org/wiki/Carbon).
2. Comments on Class Discussion
From the legal perspective, the very idea of corporation is to limit the liability of the person doing business. However when a person's liability is limited he is more likely to harm others in order to gain an economic advantage for himself. That is why in cases like this 'piercing the corporate veil' becomes necessary to hold the perpetrators personally responsible.
3. Comments on the web links
All three web links this week are very useful. The information is very clearly and concisely presented. I also love the fact that the first two links come from UK so in addition to the chemistry knowledge we also learn what British A level requires for British students. The last link is from Purdue which brings back good college memories : )
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