What binds the hydrogen atoms to the oxygen atom in a molecule of water?
Electricity binds the hydrogen atoms to the oxygen atoms in water. Each hydrogen’s single electron locates closer to the oxygen atom than to its own centre. The positive nucleus of the hydrogen is more exposed and the oxygen now has an excess negative charge. The opposite charges attract and bind the atoms together. 4. Water is described as a “polar molecule”. What does “polar” mean in this case? The shape of the water molecule is lopsided, like a vee, and this means that it has sides that are electrically different. They form a positive pole and a negative pole to the molecule. So it is described as “polar”. 5. What causes surface tension and what is an example of it in action? (Program gives six examples.) Water molecules attract each other strongly. This causes them hold together and a surprising amount of force is needed to break their surface. 1. Raindrops on a window will fuse into little rivers. 2. A steel needle can be supported by surface tension. 3. Many insects can walk on w
