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WorksheetsKahn Academy Electron Configurations Quiz
Total questions: 21
Worksheet time: 22mins
What does the period number on the periodic table indicate about an element?
The period number shows the number of protons in an element.
The period number tells you the atomic mass of an element.
The period number represents the number of neutrons in an element.
The period number determines the chemical reactivity of an element.
The period number indicates the highest energy shell (valence shell) of an element.
Where are the outermost electrons located for Group 1 and Group 2 elements?
Group 1 and Group 2 elements have their outermost electrons in the P subshell.
Group 1 and Group 2 elements have their outermost electrons in the D subshell.
Group 1 and Group 2 elements have their outermost electrons in the S subshell.
Group 1 and Group 2 elements have their outermost electrons in the F subshell.
Group 1 and Group 2 elements have no outermost electrons.
How can you determine the number of electrons in the outermost subshell of an element using the periodic table?
To find the number of electrons in the outermost subshell, count the number of squares to the right in that block.
To find the number of electrons in the outermost subshell, use the atomic number directly.
To find the number of electrons in the outermost subshell, subtract the group number from the period number.
To find the number of electrons in the outermost subshell, divide the atomic mass by 2.
To find the number of electrons in the outermost subshell, count the number of periods above the element.
What is the correct electronic configuration for chlorine?
The electronic configuration of chlorine is 1S2 2S2 2P6 3S2 3P6.
The electronic configuration of chlorine is 1S2 2S2 2P6 3S2 3P4.
The electronic configuration of chlorine is 1S2 2S2 2P6 3S2 3P3.
The electronic configuration of chlorine is 1S2 2S2 2P6 3S2 3P5.
The electronic configuration of chlorine is 1S2 2S2 2P6 3S2 3P2.
What is unique about the location of the outermost electrons in D block elements?
D block elements have their outermost electrons in the D subshell, which is one shell below the valence shell.
D block elements have their outermost electrons in the S subshell, which is the valence shell.
D block elements have their outermost electrons in the P subshell, which is the valence shell.
D block elements have their outermost electrons in the F subshell, which is two shells below the valence shell.
D block elements have their outermost electrons in the D subshell, which is the same as the valence shell.
Which noble gas is used in the shorthand electronic configuration for tin (Sn)?
The shorthand electronic configuration for tin (Sn) uses argon (Ar) as the nearest noble gas before tin.
The shorthand electronic configuration for tin (Sn) uses krypton (Kr) as the nearest noble gas before tin.
The shorthand electronic configuration for tin (Sn) uses xenon (Xe) as the nearest noble gas before tin.
The shorthand electronic configuration for tin (Sn) uses neon (Ne) as the nearest noble gas before tin.
The shorthand electronic configuration for tin (Sn) uses helium (He) as the nearest noble gas before tin.
What is the correct electronic configuration for vanadium (V)?
The electronic configuration of vanadium (V) is 1S2 2S2 2P6 3S2 3P6 4S2 4D3.
The electronic configuration of vanadium (V) is 1S2 2S2 2P6 3S2 3P6 4S2 3D5.
The electronic configuration of vanadium (V) is 1S2 2S2 2P6 3S2 3P6 4S2 4D5.
The electronic configuration of vanadium (V) is 1S2 2S2 2P6 3S2 3P6 4S2 3D3.
The electronic configuration of vanadium (V) is 1S2 2S2 2P6 3S2 3P6 3S2 3D3.
How are the outermost electrons of F block elements positioned relative to the valence shell?
The F block elements have their outermost electrons in the S subshell, which is the valence shell.
The F block elements have their outermost electrons in the D subshell, which is one shell below the valence shell.
The F block elements have their outermost electrons in the P subshell, which is the valence shell.
The F block elements have their outermost electrons in the F subshell, which is the same as the valence shell.
The F block elements have their outermost electrons in the F subshell, which is two shells below the valence shell.
What is the general method for writing the electronic configuration of an element using the periodic table?
To write the electronic configuration of an element, start from the element and move backward across the table.
To write the electronic configuration of an element, only fill the S and P subshells.
To write the electronic configuration of an element, use the atomic mass to determine the order.
To write the electronic configuration of an element, fill the subshells randomly.
To write the electronic configuration of an element, start from hydrogen and move across the periodic table, filling subshells in order.
Why is helium placed with the noble gases on the periodic table, even though its electrons fill the S subshell?
Helium is placed with the noble gases on the periodic table because it shares similar properties, even though its electrons fill the S subshell.
Helium is placed with the noble gases because it has the highest atomic number.
Helium is placed with the noble gases because it has electrons in the P subshell.
Helium is placed with the noble gases because it is a metal.
Helium is placed with the noble gases because it is in the F block.
1s22s22p63s23p6
4s23d104p6
What element is:
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ 6d¹⁰ 7p⁶
?
Po
Lv
Ts
Og
Rn
Which element is represented by this orbital notation?
neon
sodium
magnesium
aluminum
Which of the following is the orbital notation for oxygen?
What is the element?
sulfur
chlorine
phosphorus
silicon
After 3p orbital has been filled with electron, why the electron is added to the 4s orbital instead of 3d orbital?
difference in shape of orbital
the first ionisation is increasing across the period
the first ionisation is decreasing going down the group
due to orbital energy level
