What is the minimum energy required to ionize
a hydrogen atom in the n = 3 state?
(1) 0.00 ev (3) 1.51 ev
(2) 0.66 ev (4) 12.09 ev

the answer is d. 4

hope this

also the more points you give the faster your questions get answered

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.