An oxygen atom picks up two additional, free floating electrons. Is the charge of the newly formed oxygen ion positive, negative
2 answers:
Answer:The newly formed oxygen ion is negatively charged.
Explanation:
Cation : These are species of ions which carries positive charge that is number of protons are greater than the number of electrons.
Anion:These are species of ions which carries negative charge that is number of electrons are greater than the number of protons.
When an oxygen atom gains two electrons it develops the charge of negative charge and forms anion.
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Answer
given,
wavelength (λ)= 500 n m
thickness of film= 10⁻⁴ cm
refractive index = μ = 1.375
distance traveled is double which is equal to 2 x 10⁻⁴ cm
a) Number of wave
N = 2.91
N = 3
b) phase difference is equal to
Reflection from the first surface has a 180° (½λ) phase change.
There is no phase change for the 2nd surface reflection and there is no phase difference for the 2nd wave having traveled an exact whole number of waves.
net phase difference =
= 270°