1 The cause of this most common type of cardiomyopathy often is unknown. 2  It may be caused by reduced blood flow to the heart (ischemic heart disease), infections, toxins and certain drugs. 3  It also may be inherited from a parent. 4  It usually enlarges (dilates) the left ventricle.ommon causes of abnormal heart rhythms (arrhythmias) or conditions that can lead to arrhythmias include: 1  Heart defects you're born with (congenital heart defects). 2  Coronary artery disease. 3  High blood pressure. 4  Diabetes. 5  Smoking.
The second ionization energy is always larger than the first ionization energy, because it requires even more energy to remove an electron from a cation than it is from a neutral atom. The first ionization energy varies in a predictable way across the periodic table. The ionization energy decreases from top to bottom in groups, and increases from left to right across a period. Thus, helium has the largest first ionization energy, while francium has one of the lowest.
No, valence electrons are the electrons in the outermost energy level of an atom. A molecule is the smallest physical unit of an element or compound, consisting of one o â¦ r more like atoms in an element and two or more different atoms in a compound.