My thinking is ... If intrinsinc semicoductor is doped with Hexavalent Impurity, then energy level of outermost orbit of hexavalent atom, will fall below than that of pentavalent atom, so more amout of energy will be required to move this newly generated electron to move from fermi level to conduction band of semicondoctor. And vice versa for Bavalent.
A bivalent chemical element has the valence 2 as calcium for ex.
Because of a preliminary FMD diagnosis of both 0 and Asia, an order for a bivalent vaccine was placed.
an element which has valency 2
A bivalent contains two duplicated homologous chromosomes.
A benzylidene is the bivalent radical C6H5-CH=.
bivalent
It is not ionic. It is a covalent compound.
bivalent is another name for tetrad
Aquatic mollusk ,like a scallop or a mussel are bivale which mean animals that consist in two hinged shells .
One pair of homologous chromosome
Compounds of bivalent manganese are pink.
Calcium is a bivalent chemical element - 2+.