The weather map below is from October 19, 2010. Use the weather map and your knowledge of science to answer any questions that follow. The "L" over north Texas indicates that El Niño-

What element breaks down into yttrium-90?

Can someone me with 1 to 4 plz. fast

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.