What does Nerys mean? Nerys [nerys] as a girls' name is of Welsh origin, and the meaning of Nerys is noblewoman. Modern coinage. The given meaning is based on the name's similarity to the Welsh word ner, meaning lord and the endings of the names Gladys and Dilys. Associated with: modern. Nerys has 3 variants: Neris, Neriss and Neryss.
Water is a polar molecule, meaning that there is an uneven distribution of electron density. Water has a partial negative charge () near the oxygen atom due the unshared pairs of electrons, and partial positive charges () near the hydrogen atoms.
The difference between polar and non-polar molecules is the final charge caused by the covalent bond. Polar molecules will have an excess charge due to the imbalance of the electronegativity of the atoms forming the bond that creates a difference of charge in the poles of the molecule.