Why F3 ion does not exist while I3 ion does exist?

F3 ion does not exist due to its small size and absence of vacant d-orbital to expand its covalency from one to two whereas Iodine have large size and vacant d orbital to form I3 ion. Note : Size is the major reason for non existence of F ion.

Why does I3 violate octet rule?

Lewis Dot of Triiodide Ion I3- I does not follow the octet rule. It will hold more than 8 electrons. Iodine having valence electrons in the 4th energy level, will also have access to the 4d sublevel, thus allowing for more than 8 electrons.

Can Br3 exist?

While I3- and Br3- are both stable molecules, F3- is not a stable molecule.

Is CL3 possible?

Cl3 by itself does not exist. The CL3 when attached to a Al (aluminium) atom, can combine with 3 chlorine atoms to make this aluminium chloride molecule.

Why does iodine form I3 − but F2 does not form F3 − ions?

Due to the presence of vacantd-orbitals I2 accepts electrons from I- ions to form I3- ions butbecause of absence of d-orbitals F2 does not accept electrons from Fions to form F3- ions.

Is I3 coordinate molecule?

I3- molecular geometry is linear. While there are three Iodine atoms, one of the atoms has a negative charge which further gives 3 lone pairs of electrons and 2 bond pairs. Its steric number will be 5. The three lone pairs will repel each other and take up equatorial positions.

What is the shape of I3+?

What is I3+ shape? – Quora. Since I3+ has sp3 hybridisation and two lone pair on central I atom therefore its shape would be Bent or V shape. Since I3+ has sp3 hybridisation and two lone pair on central I atom therefore its shape would be Bent or V shape.

What type of compound is if3?

Iodine trifluoride is an interhalogen compound with the chemical formula IF3. It is a yellow solid which decomposes above −28 °C.

Is Cl3 an element compound or mixture?

Both Cl2 and Cl3 are chemical compounds of chlorine. They differ from each other in their structure and properties such as the reactivity.

Is Cl3 a compound or element?

Why F3 ion does not exist?

F 3 ion does not exist due to its small size and absence of vacant d-orbital to expand its covalency from one to two whereas Iodine have large size and vacant d orbital to form I 3 ion. Note : Size is the major reason for non existence of F 3 ion. Was this answer helpful?

Why are SC3+ ions colourless and diamagnetic?

The transition metal ions which have completely filled d-orbitals are colourless, as there are no vacant d-orbitals to permit promotion of the electrons. Therefore,Sc 3+ ions are colourless and diamagnetic.

Why does SC3+ have a +3 oxidation state?

It’s because Sc3+ does not have any electrons left in its d orbital. Sc has the electron configuration [Ar](4s)2(3d)1 but in order to get its +3 oxidation state, it has to lose 3 electrons, starting with the two 4s electrons and followed by the lone 3d electron.

Why is SC3+ not considered a transition metal ion?

The transition metal ions which have completely empty d-orbitals are also colourless, The Sc3+ ion doesn’t count as a transition metal ion because its 3d level is empty .