Vespr Formula

[Ricky Ma DIS 4E]

Within the homework there are questions that go over Vespr formula but we didnt go over that. Would we need to know those for tests/quizzes?

[Jim Brown 14B Lec1]

Not sure but it's pretty easy. Its the character A followed by X with a subscript of the number of bonds with another atom, then E with a subscript of the number of lone pairs.

[Javier_Ochoa_DIS_3J]

Here is an example to help.

The formula is all about what is connected to the center atom. The number after X means the number elements attached to the center element. E represents the number of electron lone pairs attached to the center element.

I hope that helped a little.

[Vicky Lu 1L]

The VSEPR formula is simply the letter A follow by X with a subscript of how many atoms are attached to the central atom you pick and E with the subscript of the number of lone pairs of electrons attached to the central atom as well.

[Rosha Mamita 2H]

The A refers to the central atom, the X refers to the number of bonded atoms, and the E refers to the number of lone pairs

[Rosha Mamita 2H]

For example, linear would be AX2E0, tetrahedral would be AX4E0, trigonal pyramidal would be AX3E1

[Nathan Tran 4K]

Also, to add a quick thing--it's actually VSEPR, not VESPR. This is because VSEPR stands for valence shell, electron pair, repulsion theory. As stated above, the basic formula AXnEm where A represents the central atom with an implicit subscript of 1, X represents a ligand (the atom attached to the central atom) with subscript n representing the number of ligands, and E represents lone pairs with subscript m representing the number of lone pairs. This helps us identify the shapes of specific molecules.