The standard "picture" of the hydrogen atom as a tiny proton with an electron moving in an ellipse around it is extremely oversimplified. The main thing wrong with this picture is
A) the path is actually much more complicated than the elliptical path pictured.
B) the electron should be pictured as a spread-out matter field.
C) actually there are several electrons going around in the hydrogen atom
D) the electron is actually much larger than the proton.
E) Actually this picture is not oversimplified.
B
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The radiation curve for a blue hot star peaks in the
A) infrared region. B) red region. C) yellow region. D) ultraviolet region. E) none of the above
Why are Saturn's rings so noticeable?
A) They are made of metallic hydrogen. B) They are made of lots of fresh, bright icy particles from a recent breakup. C) The particles in the rings are highly polished from numerous collisions with other particles. D) They are made of nitrogen frost, like the bright surface of Triton. E) Saturn is so bright, the rings reflect a lot of light from both Saturn and the Sun.
Which fact about Mars is true?
A. There are no volcanoes on Mars. B. No spacecraft has ever landed on Mars. C. There was never water on the surface of Mars. D. It is always warmer than freezing on Mars surface. E. Mars has a thinner atmosphere than Earth does.
The Orion Nebula glows strongly in the infrared
Indicate whether the statement is true or false