8/3/2023 0 Comments Pf3 molecular geometry![]() ![]() ![]() Find the total number of bonds forming in a single PF3 molecule. It is six in total, where three valence electrons are needed by the phosphorus atom and one, each by three fluorine atoms.ģ. Find out the number of valence electrons further needed of a single PF3 molecule to stabilize itself. Find out the total number of valence electrons in PF3, which is 26.Ģ. PF3 is a tetra-atomic molecule where phosphorus donates three valence electrons, and three fluorine atoms accept one electron each to undergo a bond formation and reach a stable condition.īelow are the steps to draw the lewis structure of the PF3 moleculeġ. The Lewis structure is drawn using eight dots of valence electrons around the symbols of the atom with lines showing bond formation. ![]() Lewis structure of Phosphorus Trifluoride (PF3) Whereas, on the other hand, the atomic number of fluorine is nine which makes its electronic configuration 1s2 2s2 2p5, having a scarcity of only one valence electron. As we know, the p shell can hold a maximum of six electrons there is a scarcity of three electrons. The atomic number of phosphorus is fifteen which makes its electronic configuration 1s2 2s2 2p6 3s2 3p3. The reason for the same is explained with the help of their electronic configuration. So, fluorine accepts the electron whereas, the phosphorus atom tends to donate the electrons to complete their octet and reach a stable condition. Here, it is essential to understand that a higher number of valence electrons will strengthen the ability of an atom to accept the electrons rather than donating. Moreover, uneven or unpaired electrons compel them to participate in the bond formation. Because they are present in the outermost shell, the hold of the nucleus is weak on them. The electrons present in the outermost shell of an atom are called valence electrons. Valence electrons in Phosphorus and Fluorine atom On the other hand, a single fluorine atom has seven valence electrons with a d of one to complete its octet and reach a stable condition. One phosphorus atom has five valence electrons, having a scarcity of three to complete its outermost shell or octet. As per this rule, the maximum number of valence electrons an atom can have is eight. ![]()
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