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

A(n) is the smallest unit of an element that retains all the properties of that element. molecule atom O compound

Part A Which of the following is NOTa subatomic particle? molecule O neutron proton electron

33 of 48 A radioisotope is all the following except an isotope with different number of neutrons from others a chemical that either glows in the dark or releases heat an unstable isotope that eventually changes into a different element a chemical that gives off radioactivity

Collectively, C, H, O, and N comprise approximately what percent of all elements in the body? O about 96% around 16% Ⓒ 100% O approximately 46%

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…

What type of bonds occur BETWEEN water molecules?

explain how the Avery/Hershey Chase experiments proved that DNA is the genetic material.       Is a “trans-fat” a saturated fat, an unsaturated fat or neither? Explain.   Describe three properties of water, and how these properties play a role in the lives of living organisms.

What subatomic particle do all Carbon atoms, isotopes and ions have in common?

Two or more chemical compounds that have the same formula, but have different structures are known as...? isotopes reducing agents isomers antioxidants enzymes