C. How does electronegativity change going down and across the periodic table? d. How does the radius of a positive and negative ion compare to a neutral atom?

Which of the following mining methods disrupts the sea floor?

24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm

Which of these conditions most likely produces an unstable isotope?