Find the following elements in the periodic table, identify which block they are in, and give their electron configurations by using the position in the periodic table rather than consulting Table 7.3.

(a) Al

(b) Sr

Strategy

Use Figure 8.1a and find the element in the periodic table. Starting with hydrogen, trace through the periodic table up to the given element. Using the shell and subshell as is appropriate for the respective parts of the periodic table, construct the electron configuration of the element.

Figure 8.1a

Table 7.3

Transcribed Image Text:

Sr Ti Al 2 Br