4. What holds a moon in its orbit? *

Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a

What is the molar mass of a gas that has density of 2.054 g/l