carbon Flashcards
melting point of ch3ch2oh
156
boiling point of ch4
111
melting point of ch3cooh
290
boiling point of acetic acid
391
mp chcl3
209
bp of chcl3
334
ethanol boiling point
351
ch4 melting point
90
atomic number of carbon is _?
6
no. of valence electrons in carbon and why
4 because total 6, k=2 L=4
why cant carbon either gain or loose electrons?
if it were to loose electrons it would become and c4+ cation but it would require a large amount of energy to do so, leaving behind carbon cation w 6 protons and 2 electrons
how does sharing of atoms help?
both elements have achieved noble gas configuration in there outermost shell
why do covalently bonded molecules have low boiling and melting points? and poor conductors of electricity
covalently bonded molecules are seen to have strong bonds within the molecule but inter molecular forces are weak. this gives rise to low melting and boiling points and since the electrons are shared between atoms and no charged particles are formed, hence they are generally poor conductors of electricity
allotropes of carbon
diamond
graphite
buckminsterfullerence
properties of diamond
each carbon atom bonded to 4 other carbon atoms forming a 3d rigid shape, hardest substance
