No piercing is considered fully healed until it's a year old. Contrary to what you may read, it takes the body a full year to season a piercing to the point where it can be removed for extended periods of time without the risk of the piercing closing.
HBr is polar. The Lewis structure shows a central carbon atom forming four single covalent bonds with the four terminal bromines. The central carbon has no lone pairs and four bonding pairs, so the molecular geometry is tetrahedral (as is the electron geometry), and bond angles are thus approximately 109.5 degrees.
Using the VSEPR model, predict the molecular geometries of: (a) SnCl. SOLUTION (a) The Lewis structure for the SnCl. The central Sn atom is bonded to the three Cl atoms and has one nonbonding pair on it. Therefore, the Sn atom has four electron domains around it.The resulting electron-domain geometry is tetrahedral (Table 9.1) with three of the corners occupied by the bonding pairs of electrons.sing the VSEPR model, predict the molecular geometries of: (a) SnCl. SOLUTION (a) The Lewis structure for the SnCl. The central Sn atom is bonded to the three Cl atoms and has one nonbonding pair on it. Therefore, the Sn atom has four electron domains around it.