Which radioisotope emits alpha particles?
(1) fe-53 (3) au-198
(2) sr-90 (4) pu-239

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.