Fill in the Blanks 1 - Atoms and EnergyOnline version Chapter 10, Lesson 4: "Atoms and Energy". Use your textbook to help you fill in the blanks (click on the words) pages 570 - 577. by Naneth Burquez 1 gamma isotopes particles rays half life radioactive fission chain unstable nuclear nuclear beta fusion electromagnetic reaction Atoms and Energy 1 . Atoms with the same number of protons but different numbers of neutrons are called . 2 . The form of radiation that is made of electromagnetic waves rather than particles is . 3 . The splitting of a nucleus into two or more pieces when struck with slow - moving neutron is called . 4 . An element that gives off energy in the form of rays or particles is . 5 . The form of radiation that is made of fast , light electrons , which can penetrate some materials , is . 6 . The amount of time it takes for half of the isotopes in a sample of an element to decay by emitting radiation is the element ? s - . 7 . A reaction in which the products are what keep the reaction going is called a . 8 . A reaction in which nuclei of light atoms merge to form one nucleus with greater mass and energy is released is called . 9 . Some isotopes are , because the atoms have too much nuclear energy . 10 . Gamma ray radiation is not made of particles , it is made of waves .
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