What is the approximate nuclear radius of an isotope of sodium with 11 protons and 12 neutrons?
What will be an ideal response?
Question 2
Planet Z-34 has a mass equal to one-third that of Earth and a radius equal to one-third that of Earth. With g representing, as usual, the acceleration due to gravity on the surface of Earth, the acceleration due to gravity on the surface of Z-34 is
A) g/3.
B) 3 g.
C) 6 g.
D) g/9.
E) 9 g.