Question 1 (2 points) The male Red Fody's bright red color helps it to attact a mate. What type of trait is this?

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.

Classify this reaction: 2al+n2-> aln.

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %