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Play Fill in the Blanks Game
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 .