Chemical Equilibrium Questions! Needed ASAP
(pic attached)
*sorry for bad grammar in pic, my teacher typed it*

what are the choices?

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)