A radioactive isotope that emits a gamma quantum will change in what respect?
a. Atomic number increases by one.
b. Atomic number decreases by one.
c. Atomic mass number decreases by one.
d. None of the above choices are valid.
d
You might also like to view...
A water line of 2 inch diameter is buried horizontally 4 feet deep in earth. Estimate the heat loss per foot from the water line if water at 50ºF flows through the line and the outside temperature of the line is assumed to be 50ºF. The surface temperature of the earth is -20ºF
What will be an ideal response?
A ball rolls off the edge of a table. The horizontal component of the ball's velocity remains constant during its entire trajectory because
A) the ball is not acted upon by any force. B) the net force acting on the ball is zero. C) the ball is not acted upon by a force in the horizontal direction. D) the ball is not acted upon by a force in the vertical direction. E) None of the other choices is correct.
A resistor and a capacitor are connected in series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage across the resistor is
A) greater than the battery's terminal voltage. B) equal to the battery's terminal voltage. C) less than the battery's terminal voltage, but greater than zero. D) zero.
The identification of "spiral nebulae" as large groupings of stars outside of our own galaxy was proven by ____
a. photographic plates made by Edwin Hubble showing stars and Cepheid variables b. the results of the Shapley-Curtis debate c. Immanual Kant's "island universe" theory d. William Parsons' observation and description of their spiral structure e. Harlow Shapley's observations of their radio spectrum