Скачать с ютуб what happens to radioactive nuclei a science with bobert video short в хорошем качестве

what happens to radioactive nuclei a science with bobert video short

When nuclei have a ratio of neutrons to protons that lands in the "belt of stability" radioactive behavior stops! Every atom has a nucleus that contains protons and neutrons. (pic still image from movie, label protons red, neutrons gray) Here are all the different types of atoms known to man. (show periodic table) Each atom is named according to its number of protons in its nucleus (circle & label & protons...on PT). For example any atom that has a nucleus with six protons would be called a carbon atom. If an atom has eight protons it would be called oxygen and so on. (circles labels appear) All atoms are stable IF AND ONLY IF they have the right number of neutrons. this magic number of neutrons is different for different numbers of protons. (voice huh?? big deep voice, have to make) I know this gets confusing so to keep all this straight chemists use a plot called “the belt of stability” (repeated with strong deep voice.....”the belt of stability, sounds nice”.) In this plot all you have to do is look at the number of protons in your nucleus on this axis, go up, and if the nucleus does not have this number of neutrons...oh oh! (radioctive boom movie) well not that bad, but the atoms with that nucleus definitely are radioactive. what makes radioactive stuff hazardous to our health? (movie with bobert dodging the particle or passing through him, movie adjusted so kicks out particles more often....radioactive health effects movie) what makes radioactive stuff so hazardous to our health? Actually it is not the radioactive material that is dangerous to the touch, but the high energy particles that are being emitted from the radioactive material that causes damage to our bodies! Most radioactive particles pass right through us, but when they don’t, and if we get repeatedly exposed for long periods or with heavy doses, our tissues and cells become damaged by these high energy particles. (Rotating DNA movie, first healthy then Bobert shoots it with gun and use remove color to make holes....either replace movie or animate if possible) In worst case scenarios the DNA in the exposed area gets altered (bobert shoots with gun) and cells in the area start multiplying and growing like crazy! (bop noise multiple times and spheres pop up for each bop) That is the beginning of cancer! Again, what makes radioactivity dangerous is the AMOUNT of radioactive exposure our bodies receive. Well, that’s enough exposure for one day! I think I am going to get moving now!