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.
Explanation: The electron domain geometry of a molecule describes the arrangement of the electron domains in the molecule while the molecular geometry describes the arrangement of the actual atoms in the molecule. The presence of non-bonding electron pairs can affect the molecular geometry making it different than the electron domain geometry. 21. The electron-domain geometry and the molecular geometry of a molecule of the