SECTION 1.1 DIFFICULTY LEVEL

4. - TEST BANK FOR INTRODUCTION TO ORGANIC CHEMISTRY 5TH EDITION BY BROWN
TEST BANK FOR INTRODUCTION TO ORGANIC CHEMISTRY 5TH EDITION BY BROWN

4. Which atom is described by the electron configuration 1s

2

2s

2

2p

6

3s

2

3p

5

?

a) S

b) Se