What is the atomic number of a neutral atom that has an electron configuration of 1s2 2s2 2p6 3s2 3p2?
A) 5
B) 11
C) 14
D) 20
C
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In the atmospheres of the jovian planets, this component increases, systematically, with distance from the Sun
A) Hydrogen B) Helium C) Methane D) Ammonia E) Nitrogen
Which of the following is a result of particles of antimatter colliding with particles of normal matter?
A) The formation of a large particle of normal matter B) The conversion of the mass of the particles into energy C) The formation of a large particle of antimatter D) The creation of new, more massive particles
If we could see our own galaxy from 2 million light-years away, it would appear
A) as a flattened disk with a central bulge and barred-spiral arms. B) as a faintly glowing band of light stretching all the way around the sky. C) to fill the sky with widely spaced stars. D) like a single, dim star.
How might the most common occurring stars be described, based on our stellar neighborhood?
A) white dwarfs B) K giants C) G main sequence D) A main sequence E) M main sequence