1. Periodicity I
Self Quiz

2. What is the name of the group that includes potassium?
Alkali metals

3. What is the name of the group that includes bromine?
halogens

4. What element’s configuration ends 5s2Sr

5. What element’s configuration ends with 3p2?Si

6. How many valence electrons does Sb have?5

7. How many valence electrons does Ba have?2

8. What element’s configuration ends with 3d10?Zn

9. What is the concise configuration for Cs?
[Xe]6s1

10. What is the concise configuration for S?
[Ne]3s23p4

11. What is the concise configuration for Se?
[Ar]4s23d104p4

12. What is the concise configuration for Cr?
[Ar]4s13d5

13. What is the concise configuration for Cu?
[Ar]4s13d10