Which of the following chemical bonds is the same as the chemical bond that holds Na+ and CI- together in NaCI?

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 layer of the atmosphere is directly above the troposphere?

What is the mass of 0.46 mol of mgcl2