Covalent bonding is like a tug-of-war. Two atoms share their electrons, but each atom pulls those shared electrons towards itself. When the two atoms pull equally, it is called a nonpolar covalent bond. Atoms form bonds in order to achieve a stable, full outer energy level.For most atoms this means having eight electrons in the outer energy level, like the noble gases.ovalent bonding is like a tug-of-war. Two atoms share their electrons, but each atom pulls those shared electrons towards itself. When the two atoms pull equally, it is called a nonpolar covalent bond. Atoms form bonds in order to achieve a stable, full outer energy level.
One of the most typical causes of basement flooding is that the house has been constructed on an unsuitable site. Houses are usually built on sloped terrains, allowing accumulated water to drain. If your home has been built on the low part of your estate, chances are it will flooded frequently.
1 The source of leakage in many basements occurs at the seam where the masonry wall meets the concrete floor. 2  Because blocked french drains can no longer drain properly, water building up below ground level, exerts force, causing water to seep up through cracks and seams in the floor.