An electron initially in a 4p state decays to a lower energy state. Which energy state is forbidden?
A) 1s B) 2p C) 3d D) 2s
B
Physics & Space Science
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Entropy: When 1.0 kg of steam at 100°C condenses to water at 100°C, what is the change in entropy of the steam? The latent heat of vaporization of water is 22.6 × 105 J/kg.
A. zero B. 6.1 × 103 J/K C. -6.1 × 103 J/K D. 22.6 × 105 J/K E. -22.6 × 105 J/K
Physics & Space Science
Which one of the following is the correct electronic configuration for carbon, which has 6 electrons?
A) 1s1 2s1 2p1 B) 1s1 2p1 C) 1s2 2s2 2p2 D) 1s2 2s2 2p4 E) 1s1 2s2 2p1
Physics & Space Science
When the distance between two charges is halved, the electric force between the charges
A) quadruples. B) doubles. C) is half. D) is reduced by one-quarter. E) none of the above
Physics & Space Science
The symbol indicating the number of nucleons in a nucleus is __________
Fill in the blank(s) with correct word
Physics & Space Science