AP BIOLOGY

Detailed explanation-1: -The unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that a water molecule has two poles-a positive charge on the hydrogen pole (side) and a negative charge on the oxygen pole (side). We say that the water molecule is electrically polar.

Detailed explanation-2: -Because oxygen is more electronegative-electron-greedy-than hydrogen, the Ostart text, O, end text atom hogs electrons and keeps them away from the Hstart text, H, end text atoms. This gives the oxygen end of the water molecule a partial negative charge, while the hydrogen end has a partial positive charge.

Detailed explanation-3: -The oxygen atom is more electronegative than the hydrogen atoms, meaning the electrons will spend more time around oxygen. This gives a slight negative charge to the oxygen atom and slight positive charges to the hydrogen atoms. The result is a polar molecule, as each end of the molecule has a different charge.

Detailed explanation-4: -Unequal sharing of electrons makes water a polar molecule. Tell students that the oxygen atom attracts electrons a little more strongly than hydrogen does. So even though the electrons from each atom are attracted by both the oxygen and the hydrogen, the electrons are a bit more attracted to the oxygen.

Detailed explanation-5: -Answer. the option 2) is the correct answer..!! 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.