An animal that backs on a warm rock during the morning hours but retreats to the shade of the rocks during the middle of the day is mostly likely a (n)

a. ectotherm

b. endotherm

c. vertebrate

d. chordate

Complete the table for ion charge based upon their losing or gaining electrons in the outer shell. (use the periodic table as necessary.) group most likely ionic charge # of valence electrons i +1 ii +2 iii +3 iv +4 or -4 v -3 vi -2 vii -1 viii 0

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

Name the element in group 17, period 2. (periodic table)