Carbon-14 is a radioactive material. It contains 6 protons and 8 neutrons. During the process of Carbon-14 decay, one of its 8 neutrons becomes a proton and an electron is formed in the process. Based on this information, select all that apply. The mass number is unchanged by the decay of Carbon-14. The mass number is changed by the decay of Carbon-14. After decay the atom is still Carbon. After decay the atom is not Carbon.

Use your copy of the periodic table to answer this question: If you add an electron to fluorine, what will result? A) a negatively charged anion B) a different atomic number C) a different isotope D) a different element E) a positively charged cation

Complete the following table Symbol # protons # electrons # neutrons Atomic Mass Number Number 60CO 27 53 127 25 34 80

A student drew atomic models of four elements. Tin, because it has five energy levels with four electrons in the fifth level Neon, because it has two energy levels with eight electrons in the second level Gallium, because it has four energy levels with three electrons in the fourth level Chlorine, because it has three energy levels with seven electrons in the third level CLEAR ALL Based on these drawings, which element is the least reactive? O O O O

Alpha Decay (Emission) Beta Decay (Emission) 220 Fr → 'a + At 16 N 216 °B+ 0 87 85 What are the products of francium-200 decay above? What are the products of nitrogen-16 decay above? 220F. + 216At 16 N B+"0 S7 85

Name three specific examples of multipolar neutrons and state where each is found in the body

Which of the following is not a fundamental subatomic particle that forms elements? Which of the following is not a fundamental subatomic particle that forms elements? electrons protons nucleus neutrons

Sort the subatomic particles according to their masses. Drag each subatomic particle into the correct bin. electron proton neutron mass of ~ 1 amu mass of ~ 1/2000 amu

Many radioactive isotopes are used in medicine for imaging and treatment purposes. The specific isotopes used depends on the particular organ or body system being studied (for example, Xe-133 is used to image lung function and blood flow.) Technetium-99m is a common radioactive isotope using for a variety of medical applications.  It is produced from the decay of Molybdenum-99 and has a half-life of 6.01 hours. What are some of the applications of Tc-99m? While harder to access, another radioactive isotope of technetium, Tc-93, has a half-life of 2.73 hours.  If it were easier to harvest, would this be a good substitute for Tc-99m? (remember to explain why for full credit) While Tc-99m has a half-life of 6.01 hours, its decay product has a half-life of 213,000 years.  While the medical community considers it to be reasonably safe, within the limits of testing, does this make sense considering both chemical and biological principles? What are possible ways that you might deal with or…

Silver (Ag) atoms contain fewer electrons, neutrons and protons than Gold (Au) atoms. To change Silver into Gold, a chemist might try to add nucleus, because these particles are the ones that to the determine the identity of an atom. protons and electrons neutrons electrons neutrons and electrons protons