Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: denominator on September 17, 2007, 08:13:44 PM
-
I haven't had a chem. class in 2 years, so I kind of forget how to do somethings, which is weird because i really love chemistry! if some one could help me answer these following questions that would be great:
Choose the larger particle in each pair
a) Na or Na+ b)Co+3 or Co+2 c)I or I-1
In which energy level are the valence electrons of I, Ca, and F found?
Which atom from each set loses and electron the easiest and explain why:
a) Na, Sr, Be, Rb b) Br, I, Cl
Why is the alkali metals so unstable?
Which electron configuration represents the LEAST reactive element?
a)2,8,1 b) 2,8,3 c)2,8,7 d)2,8,8
Which group contains elements which are hardest to ionize?
so if someone could help me, email the answers or help to molotov_cocktail_87@hotmail.com! thanks a lot