Which three human body systems coordinate to cause the arm to move

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.

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

Why are pipes bursting in the in extremely cold weather?