Name___________________________
Date_______________
Period_________
ATOMIC STRUCTURE WS #2
Write the standard notation electron configuration, the Noble gas notation (shorthand) and complete
the Aufbau diagram for the two elements:
Arsenic
Rubidium
Standard________________________________
Standard________________________________
Noble Gas Notation_______________________
Noble Gas Notation_______________________
3) Circle the electron configuration/s that are possible:
a) 1s22s22p4
b) 1s22s22p63s23p33d1
c) 1s22s22p83s1
d) 1s22s22p63s1
4) Element X has the electron configuration of [Ne] 3s23p5 – what can be said about this element?
(A) it is in group 17
(B) it is in period 3
(C) it has 7 valence electrons
(D) all of these are correct
5) In the ground state, which atom has a completely filled valence electron shell?
(A) C
(B) Ne
(C) V
(D) Sb
6) What is the total number of neutrons in an atom of Carbon-14? _________
Give the name for the following elements:
7) 1s22s22p63s23p64s23d104p65s24d105p6
_________________________
8) 1s22s22p63s2
__________________________
9) 1s22s22p63s23p64s23d104p65s24d8
__________________________
10) [Kr] 5s24d105p3
__________________________
11) [Ar] 4s23d9
__________________________
12) Define ground state of electrons:
13) Define excited state of electrons:
14) Explain what happens to the electrons of an atom when energy is added and visible light is seen
(different colors produced by elements):
15) As ____________of a photon increases, the ______________ increases and the
______________decreases.
Determine if the following electron configurations are valid and if not, explain why:
16) 1s22s22p63s23p64s24d104p5
Valid? _________ (if not why)
17) 1s22s22p63s23d5
Valid? _________ (if not why)
18) [Kr] 5s24d105p5
Valid? _________ (if not why)