using the crossover rule i am sure it is 4
Four for each carbon atom plus 1 for each hydrogen atom plus seven for bromine = 26.
12 valence electrons
B has 3 valence electrons
H has 1 valence electron
b2 has 6 valence electrons
H6 has 6 valence electrons
=12 total.
5
15
PF3
1.433 × 1026
The chemical formula is PF3. The reaction with phsphorus is 2P + 3F2 -> 2PF3
It contains a lone pair of electrons. Hence, it can donate it thereby ,its a base. The tendency to donate the electron pairs can determine the basicity of a base. Therefore, PF3 is less basic than PH3.
1 mol of anything = 6.022x1023 atomsso 1.4 mole = 1.4 * 6.022x1023 atoms / mole = 8.4308x1023 atoms
There are 1
The formal charge of P is 0 and the formal charge of F is 0.
+1
PF3
The geometry is different and also reactivity. 2F more than on PF3 trigonal bipyramidal PF5 trigonal pyramidal PF3
1.433 × 1026
Three fluorine atoms extend from a central phosphorus. The three bonds are single bonds and each fluorine has three sets of two paired electrons. Phosphorous has an additional set of paired electrons.
phosphorus trifluoride
tetrahedral
covalent
Ax3e
The electron geometry ("Electronic Domain Geometry") for PF3 is tetrahedral. The molecular geometry, on the other hand, is Trigonal Pyramidal.