# How do you know if its linear or bent?

## How do you know if its linear or bent?

1st remember the names: The names can be determined by the shape and angle of the molecule. Linear = is just a line of atoms with a 180° angle. Notice that it’s 2 or 3 atoms total. Bent = Linear but bent due to the Lone Pairs that it contains, the more Lone Pairs the greater the bent and the smaller the degree.

## What makes a trigonal pyramidal?

Central atom will at the apex and three other atoms or ligands will be at one base, where they are in the three corners of a triangle. There is one lone pair of electrons in the central atom. So when the position of the lone pair is neglected, the remaining bonds make the trigonal pyramidal geometry.

What is tetrahedral molecule?

0. In a tetrahedral molecular geometry, a central atom is located at the center with four substituents that are located at the corners of a tetrahedron. The bond angles are cos−1(−1⁄3) = 109.4712206…° ≈ 109.5° when all four substituents are the same, as in methane (CH. 4) as well as its heavier analogues.

What does tetrahedral look like?

Tetrahedral carbon: A carbon atom with four attachments, and bond angles of approximately 109.5o. The overall shape is that of a tetrahedron (i.e., a pyramid with all faces being equilateral triangles, or nearly so).

### What makes a shape bent?

BENT (ANGULAR or V-SHAPED) It can be imagined that a linear molecule with two atoms attached to a central atom is altered when electrons are added to the top of the central atom. The repulsion caused by the addition of these extra electrons causes the molecule to become bent.

### Which is pyramidal shape?

PCl3 has sp3-hybridised phosphorus, with one lone pair. Therefore, molecule has pyramidal shape like ammonia.

What causes tetrahedral shape?

Tetrahedral is a molecular shape that results when there are four bonds and no lone pairs around the central atom in the molecule. The atoms bonded to the central atom lie at the corners of a tetrahedron with 109.5° angles between them.

Which is the best description of a trigonal planar?

In chemistry, trigonal planar is a molecular geometry model with one atom at the center and three atoms at the corners of an equilateral triangle, called peripheral atoms, all in one plane. In an ideal trigonal planar species, all three ligands are identical and all bond angles are 120°.

## What does a broken line mean in a trigonal planar compound?

The dashed or broken line means that the attached atom X 1 is behind the paper, while the thick, wedged line means that the X 2 atom juts out of the paper. X 3, on the other hand, lies flat on the paper. Another important thing to remember about trigonal planar compounds is the angle between the atoms.

## How are atoms in a trigonal pyramidal not in one plane?

Atoms in Trigonal pyramidal are not in one plane. In Trigonal pyramidal, the bonded three atoms and the lone pair electron will be as far apart as possible due to bond repulsion. The angle between the atoms will be less than the angle of a tetrahedron (109 o ). Usually, the angle in a Trigonal pyramidal is around 107 o.