Write a ground state electron configuration for these ions. remember that ions have a
change in the total number of electrons (positive have lost electrons and negative have
gained). example: n3.is 1s 2s 2p. it has three extra electrons
11. 02-
13. b3+
15. k
12. fe2+
14. ni2+
16. co3+
17. if each orbital can hold a maximum of two electrons, how many electrons can each of the
following hold?
a. 2s
c. 4f
e. 4d
b. 5p
d. 3d
18) isoelectronic species have similar electron configurations. which of these are isoelectronic?
a) li*, h, he
b) ca2+, ne, s?