Systemic scleroderma (systemic sclerosis) - blood vessels and internal organs are also affected (as well as the skin). The patient may experience fatigue (tiredness), weight loss and muscle pains. A risk factor is something which increases the likelihood of developing a condition or disease.
The Atomic number of Carbon is 6. The Atomic mass of Carbon depends on the isotope and may be from 8 to 22. Carbon 12 and Carbon 13 are the only stable isotopes of Carbon. Carâ¦bon 14 is the longest-lived unstable (radioactive) isotope. Only Carbon 12, 13 and 14 are found in nature.
The atomic mass of carbon is 12.011. Most carbon atoms consist of 6 protons and 6 neutrons. The atomic mass of hydrogen is 1.0079. Hydrogen (atomic number 1) is the element that has the lowest atomic mass. The most common isotope of hydrogen is protium, an atom that consists of a proton or a proton and an electron.