Are isotopes radioactive or non radioactive? For example, hydrogen, the lightest element, has three isotopes with mass numbers 1, 2, and 3. Only hydrogen-3 (tritium), however, is a radioactive isotope,…
Can isotopes be radioactive and non radioactive?Read MoreRutherford's gold foil experiment showed that the atom is mostly empty space with a tiny, dense, positively-charged nucleus. Based on these results, Rutherford proposed the nuclear model of the atom.…
What experimental evidence led Rutherford to conclude that the nucleus of atom is positively charged?Read MoreHow do you help a mentally ill person who doesn't want help? Here are a few things to consider when working with your loved one who doesn't want help:Listen and…
What to do if someone is mentally unstable and won’t get help?Read MoreNo medical societies recommend whole-body scans. That's because there is no evidence that the scans are a good screening tool. Whole-body scans find cancer tumors in less than two percent…
Can I get a full body scan to check for cancer?Read MoreA Day in the Life of a Physicist. The physicist deals with all aspects of matter and energy. His or her work ranges from basic research into the most fundamental…
What does a physicist do on a daily basis?Read MoreWhen radio waves are absorbed by a conductor , they create an alternating current . Can radio waves be absorbed? Most radio waves pass freely through Earth's atmosphere. However, some…
What happens in a receiver aerial when radio waves are absorbed by it?Read MoreAbout 5% of the energy released in a nuclear air burst is in the form of ionizing radiation: neutrons, gamma rays, alpha particles and electrons moving at speeds up to…
What type of radiation is emitted from a nuclear bomb?Read MoreMany cavities do not produce any symptoms whatsoever and even large cavities can exist without discomfort. However, leaving untreated and undetected tooth decay in your mouth for a long period…
Can a cavity go undetected?Read MoreRadiation Detector is an instrument used to detect high-energy particles, such as those produced by nuclear decay, cosmic radiation, or reactions in a particle accelerator.Rotary Motion Definition: Gamma DecayWhat Is…
What do radiation detectors detect?Read MoreIs it better to read the book first or watch the movie? Movies, in particular, have to cut down backstory and in some cases this can be very confusing for…
Should I read after before watching the movie?Read More