Question

1. chemical name: bromine tetrachloride cation formula: brcl4+

lewis electron - dot structure:

perspective drawing with bond angles:

standard electron geometry:
molecular geometry:
hybridization of central atom:
is the molecule polar, nonpolar, or ion?

Explanation:

Step1: Determine valence - electrons

Bromine (Br) has 7 valence electrons and each chlorine (Cl) has 7 valence electrons. The ion has a + 1 charge. So the total number of valence electrons is \(7 + 4\times7-1=34\).

Step2: Draw Lewis structure

Place Br in the center and connect it to 4 Cl atoms with single bonds. Then distribute the remaining electrons to satisfy the octet rule. Br has 4 bonding pairs and 1 lone - pair of electrons around it.

Step3: Determine electron - geometry

Using the VSEPR theory, with 5 electron - groups (4 bonding and 1 non - bonding) around the central atom, the standard electron geometry is trigonal bipyramidal.

Step4: Determine molecular geometry

The lone pair of electrons affects the molecular shape. With 4 bonding pairs and 1 lone pair, the molecular geometry is seesaw.

Step5: Determine hybridization

The central Br atom has 5 electron - groups, so the hybridization is \(sp^{3}d\).

Step6: Determine polarity

The molecule is polar because of the presence of the lone pair on the central atom, which causes an uneven distribution of electron density.

Answer:

Lewis electron - dot structure: Br is in the center with single bonds to 4 Cl atoms and 1 lone - pair on Br.
Perspective drawing with bond angles: Seesaw shape with approximate bond angles of 90° and 120°.
Standard electron geometry: Trigonal bipyramidal
Molecular geometry: Seesaw
Hybridization of central atom: \(sp^{3}d\)
Is the molecule polar, non - polar, or ion? Polar