In a nuclear reactor, when the control rods are lowered between the fuel rods, they slow the fission reactions.
a. true
b. false

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.

What human activity increases beach erosion?

What are the chemical names of these compounds? ke: mg3n2: reset next