Which of the Following Statements About Radioactive Isotopes Is True

The energy emitted by radioactive isotopes can break chemical bonds and cause molecular damage in cells. B Radioactive elements are natural and therefore not harmful.

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They are heavier and tend to spontaneously decay into other lighter elements daughter isotopes They are lighter and tend to spontaneoudly decay into heavier elements They may have the same weight as the stable isotope but different number of neutrons They always.

. 7 Which of the following statements about radioactive isotopes isare true. The half-life varies depending on the isotope. The half-life is the same for every isotope.

Which of the following statements about radioactive isotopes is true. Which of these statements about radioactive isotopes are true select all that apply. A radioactive isotope is an isotope that.

Which of the following is NOT a true statement regarding radioactive isotopes. Which of the following are true statements regarding isotopes. Has an unstable atomic nucleus can not form molecules will decay over time into a.

If the uranium nucleus is at rest before its decay which one of the following statements is true concerning the final nuclei. Which of the following statements about radiation is true. D Several small exposures over time has the same negative effect as one large exposure.

Which of the following statements about the isotopes of an element is not true. Isotopes are atoms of the same element with a different number of neutrons. A When given a choice between radioactive and nonradioactive isotopes of the same atom living cells are more likely to incorporate the radioactive isotopes into their structures.

The number of radioactive atoms in a sample will always remain constant. The process of spontaneous breakdown of an atomic nucleus and the release of energy and matter from the nucleus is called Radioactive DecayRadioactive isotopes are elements with a very unstable nucleus. A Your body contains a number of radioactive isotopes.

Which of the following statements about radioactive dating is true. Radioactive decay is the rate at which new atoms form. Correct Part B Which of the following statements regarding radioactive decay is true.

C The energy emitted by radioactive isotopes can break chemical bonds and cause molecular damage in cells. C Radiation damages cells beyond repair. B Geologists use radioactive.

ANSWERalpha particle emission stable daughter electron capture alpha particle emission beta particle emission radioactive parent isotope alpha particle. Half-lives range from fractions of a second to billions of years. The rate of decay of a radioactive element cannot be approximated.

They all have identical chemical properties. Isotopes are atoms of the same element with a different number of protons. Check all that apply.

They all have the same number of electrons. B The nuclei of radioactive isotopes are unusually stable but the atoms tend to lose. They all have the same number of protons.

66 A The nuclei of radioactive isotopes are unusually stable but the atoms tend to lose electrons. Half-lives are always only minutes long. Isotopes are atoms from different elements with the same number of electrons.

They are always trying to stabilize and to do that they release energy and transmute into other elements which are stable. They are helpful in dating fossils. During radioactive decay atoms break down releasing particles or energy.

Isotopes have the same number of neutrons but a different number of protons. Which of the following is not an acceptable way to write an isotope. -Carbon-14 is a radioactive isotope of carbon which means that its nucleus decays emitting radioactive particles and energy.

The half-life of a particular isotope is constant. They all have the same number of neutrons. A They have equal kinetic energies but the thorium nucleus has much more momentum.

The half-life of a particular isotope changes constantly. B One rem is enough to kill approximately 50 percent of the average population. - The nuclei of radioactive isotopes are unusually stable but the atoms tend to lose electrons.

Think about the process of radioactive decay and what happens over time. They can be used both to treat and to diagnose certain diseases. B They have momenta of equal magnitudes but the thorium nucleus has much more kinetic.

Check all that apply. They all have the same atomic number.

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