3. A neon light is turned on, emitting photons that are 700 nm long and travels at C. What is the EMR’s: a) frequency b) period and c) what color of visible light is it?

4. A photon of EMR has a frequency of 100,000,000,000,000 Hz. What is its: a) wavelength (in m and µm) b) its period and c) what type of wave is it?

5. a) what type of EMR has a λ =1 micrometers b) what type of EMR has a λ = 1 nanometer c) what type of EMR has a
λ = 10-10 m d) what type of wave has a V = 108 Hz and e) what type of wave has a V of 1015 Hz

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