Complete the reaction equations.  (Use the periodic table to identify any elements.)  Click the triangle to reveal the answer.

 

 

 

Choose the correct category for each description.
Categories:  proton, neutron, alpha, beta, gamma
(Highlight the empty box to reveal the answer.)

can penetrate thick aluminum, but not concrete	gamma
can penetrate paper, but not thick aluminum	beta
	beta
	alpha
the number of an element is number of these	proton
2 isotopes of same element have number of these in common	proton
repel each other in the nucleus	proton
a reactant and a product of nuclear fission	neutron
has no mass and no charge	gamma
cannot penetrate paper	alpha
2 isotopes of same element have different number of these	neutron