Why do the high-proton-number elements tend to get more unstable?
What will be an ideal response?
The repulsive electrostatic force between protons increases progressively as atomic number increases, but the nuclear attractive force is short range and the average distance between particles increases as the nucleus size increases.
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_________corrosion is usually caused by a difference in the chemical composition of the grain boundaries from the grain interiors.
Fill in the blank(s) with the appropriate word(s).
The energy in the water at the top of a waterfall is an example of gravitational potential energy
a. True b. False Indicate whether the statement is true or false
If the position of an electron is measured very precisely there is an uncertainty in measuring its
A) kinetic energy. B) momentum. C) potential energy. D) thermal energy. E) None of the other answers is correct.
The position of a mass that is oscillating on a spring is given by x = (18.3 cm) cos[(2.35s-1)t]. What is the frequency of this motion?
A) 0.426 Hz B) 1.34 Hz C) 2.67 Hz D) 0.128 Hz E) 0.374 Hz