When radium-223 (Z = 88) decays to radon-119 (Z = 86), the other particle emitted is a(n) __________
Fill in the blank(s) with correct word
alpha particle
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What is the average kinetic energy of an ideal gas molecule at 569°C? (The Boltzmann constant is 1.38 × 10-23 J/K.)
A) 1.74 × 10-20 J B) 5.81 × 10-21 J C) 1.18 × 10-17 J D) 3.93 × 10-19 J
Of what is the galactic halo presumed to be composed? What evidence supports this conclusion?
What will be an ideal response?
Electric dipoles always consist of two charges that are
A) equal in magnitude; opposite in sign. B) equal in magnitude; both are negative. C) equal in magnitude; both are positive. D) unequal in magnitude; opposite in sign. E) unequal in magnitude; both are negative.
Wave Characteristics: A 7.55 × 1014 Hz electromagnetic wave travels in carbon tetrachloride with a speed of 2.05 × 108 m/s. What is the wavelength of the wave in this material?
A. 272 nm B. 301 nm C. 338 nm D. 361 nm E. 397 nm