WorksheetsTRANSITION METALS AND ELECTRONIC CONFIGURATION
Total questions: 18
Worksheet time: 12mins
Electron subshells are most stable
with all orbitals full or all empty
with orbitals exactly 3/4 full
with orbitals exactly 3/4 empty
with orbitals exactly 1/2 full
Predict how the valence electrons in iron metal (iron 0) should be organized.
Use your stability and filling rules to predict Cu0's valence shell. (4s and 3d subshells)
Chemists can identify the composition of some unknown salts by conducting a flame test. When potassium salts are heated in a flame, a purple color is observed.
This is due to the movement of electrons between energy levels. What is the electron configuration of a potassium atom at ground state?
1s2; 2s2; 2p6; 3s2; 3p6; 4d1
1s2; 2s2; 2p6; 3s2;3p6; 3d1
1s2; 2s2; 2d6; 3s2; 3d6; 4s1
1s2; 2s2; 2p6; 3s2; 3p6; 4s1
1s22s22p63s23p64s23d10
Which of the following properties about transition elements is incorrect?
Transition metals have variable oxidation state.
They are the only elements that can form coloured ions in aqueous solution.
Transition elements are good conductors
They are the only elements that can form complexes.
Atoms are neutral because...
They have 3 particles
Neutrons and protons = 0
They have equal numbers of protons and electrons
They have a pH of 7
An atom with a charge of -2 will have...
2 more electrons than protons
2 more neutrons than electrons
2 more protons than electrons
2 electrons less than protons
Why is zinc not considered a transition metal?
Zinc is not a transition metal because it gains two 4s electrons to give a 2 with full d subshell levels.
Zinc is not a transition metal because it loses four 4s electrons to give a 4 with full d subshell levels.
Zinc is not a transition metal because it loses two 4s electrons to give a 2 with full d subshell levels.
Zinc is not a transition metal because it gains two 4d electrons to give a 2 with full d subshell levels.
What is the charge, or oxidation number, for elements in Group 17?
+ 1
-7
-1
What is the charge, or oxidation number, for elements in Group 2?
-2
+2
-3
What is the charge, or oxidation number, for elements in Group 14?
14
+4/-4
-16
