An electron in a hydrogen atom moves from level 1 to level 4. the electron then drops from level 4 to level 2. which statement
describes the most likely result?
b
the energy absorbed in the first move equals the energy released in the second move.
the energy absorbed in the first move is greater than the energy released in the second move.
the energy released in the first move equals the energy absorbed in the second move.
the energy released in the first move is greater than the energy absorbed in the second move.

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o