Gamma rays occur naturally in minerals like potassium-40. Don't stop taking your vitamins just yet, though. The radioactive isotope of potassium occurs at an extremely low concentration, and potassium is necessary for good health [source: HPS]. X-rays are essentially the same as gamma rays,...
When ethanol is oxidized to acetic acid, two protons and two electrons are also produced. Read More Breathalyzers FAQs How long after drinking can you pass a breathalyzer test? This depends entirely on your metabolism. Some digest and pass alcohol faster while some are slow. In general, ...
When ethanol is oxidized to acetic acid, two protons and two electrons are also produced. Read More Breathalyzers FAQs How long after drinking can you pass a breathalyzer test? This depends entirely on your metabolism. Some digest and pass alcohol faster while some are slow. In general, ...
In case you're confused: hydrogen ions are simply hydrogen atoms with their electrons removed. Since they have only one proton and one electron to start with, a hydrogen ion is the same thing as a proton. The protons travel through the electrolyte (yellow) towards the positive terminal (...
molecules,” I group the small organic molecules and inorganic ions that comprise the greater share of the cell’s osmotic pool and protons, which play pivotal roles in pH-dependent processes. I shall not discuss pH relationships in this review, albeit they are obviously of key importance in ...
Answer to: 100 mL of a 0.1 M solution of NaOH is neutralized to pH 7 with H2SO4. How many grams of H2SO4 are required to achieve this...
An atom that has an equal number of protons and electrons is neither positive nor negative -- it has no net charge. If that atom gains or loses electrons, however, it may become a cation, an ion with a positive charge, or an anion, an ion with a negative
After internalization, IpaB channels permit potassium influx within endolysosomal compartments inducing vacuolar destabilization. Endolysosomal leakage is followed by an ICE protease-activating factor-dependent activation of Caspase-1 in macrophages and cell death. Our results provide a mechanism for how the...
While carbon-14 is commonly used for dating, the principle applies to other isotopes as well, such as potassium-40 and uranium-235, but the accuracy of radioisotope dating may be compromised for anything that dies after the 1940s due to changes in carbon ratios from nuclear activities and fos...
This in turn relies on knowledge ofisotopes, some of which are "radioactive" (that is, they spontaneously emit subatomic particles at a known rate). Isotopesare different versions of the same element (e.g., carbon, uranium, potassium); they have the same number ofprotons, which is why th...