Electron Configuration Extra credit
Question:
1
2
3
4
5
6
a
12
13
t
24
15
ed
16
18
27
Answer:
32
34
t
a
m
20
d
21
t
29
t
33
g
19
28
rder
10 11
e
d
26
9
t
17
t
25
t
8
e
14
de
7
30
36
ee
t
23
d
31
r
35
22
l s?
37
!!!!!
Clues:
1. The noble gas configuration is [Xe]6s24f145d4
2. This element has its only electron in the 1s1orbital as its ground state.
3. If this metalloid gains one electron, its electron configuration is similar to radon.
4. Bohr’s model of quantum of energy worked well for this element only.
5. The electron configuration 1s22s22p63s23p6 represents the 3- ion that this element forms
6. The number of electrons that can be held in the 4f sublevel, plus one more gives you the atomic
number of this element
7. This element has three unpaired electrons in the 2p sublevel
8. The noble gas configuration for this element is [He]2s22p4
9. This metal may form a three plus ion by losing its 7s2 and 5f1 electrons
10. There are ____ electrons that can be held in any p sublevel. (The atomic number of this
element)
11. This is the only element that does not have 8 valence electrons in its noble gas configuration.
12. The atomic number of this element is equal to two more than the number of electrons that can
be held in the 5f sublevel plus 2 more electrons.
13. The atomic number of this element is equal to the sum of the atomic number of the 2+ ion
which has a noble gas configuration of [Kr]4d2 plus the atomic number of the 2- ion which has a
noble gas configuration similar to Xe.
14. The atomic number of this element is the number of orbitals found in any f sublevel.
15. There are 4 unpaired electrons in the 5d sublevel
16. The atomic number of this element is equal to the number of unpaired ‘p’ electrons in a
bromine atom.
17. According to Hund’s Rule, this element will have 2 unpaired electrons in the 2p sublevel
18. 1s22s22p63s23p64s23d104p65s24d105p5
19. The atomic number is equal to the number of ‘d’ electrons in cobalt
20. The atomic number is equal to the number of ‘f’ electrons in Tb
21. The 2- ion has an electron configuration of 1s22s22p63s23p6
22. This element is [Rn]7s25f3
23. The 3+ ion has an electron configuration similar to Kr
24. Its octet is complete with 2 electrons
25. It has similar chemical properties to S, Se, Te and Po as it has a similar valence configuration
26. The 2- ion has the noble gas configuration of [He]2s22p6
27. This element really likes to gain 1 electron to complete the 2p sublevel
28. This element has similar chemical properties to Rn, Xe, Kr, Ar, and Ne
29. When it forms its 2- ion it has similar properties to Ne
30. The 3+ ion has a noble gas configuration of [Xe]6s24f145d10
31. The 2+ ion has a noble gas configuration of [xe]6s04f145d3
32. 1s2
33. [He]2s22p4
34. The 2-ion has a configuration of 1s22s22p63s23p6
35. The 3-ion has a configuration of 1s22s22p63s23p6
36. This element has 9 electrons in the 4f sublevel
37. The most reactive nonmetal on the periodic table. It has the configuration of 1s22s22p5