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WorksheetsHA revision: Electrons
Total questions: 20
Worksheet time: 10mins
How many electrons can fit in one orbital?
1
2
4
8
How many electons can fit in the n=1 principal energy level?
1
2
4
8
How many electrons can fit in the n=2 principal energy level?
1
2
4
8
Why can 8 electrons fit in the n=2?
because it has 1 s orbital
because it has 1x S- orbital and 1x P- orbitals
because it has 1x S- orbital and 2x P- orbitals
because it has 1x S- orbital and 3x P- orbitals
So how many electrons can fit in each orbital?
1
2
4
8
Study this electron configuration "1s22s22p63s23p6". What do the large numbers represent?
The principal energy level
The sublevel
The orbital
The number of electrons
Study this electron configuration "1s22s22p63s23p6". What do the letters represent?
The principal energy level
The sublevel
The orbital
The number of electrons
Study this electron configuration "1s22s22p63s23p6". What do the small numbers represent?
The principal energy level
The sublevel
The orbital
The number of electrons
Which element has this electron config. "1s22s22p63s23p64s23d2"
K
Ca
Sc
Ti
V
For this element "1s22s22p63s23p64s23d2" the electrons with the highest energy are in
the n=3 principal energy level
the n=4 principal energy level
the 3d sublevel
the 4s sublevel
How many different d-orbitals are there?
1
3
5
7
How many different s-orbitals are there?
1
3
5
7
How many different p-orbitals are there?
1
3
5
7
How many different f-orbitals are there?
1
3
5
7
What is the Pauli exclusion principle
Electrons fill lower sub-levels energy first
Electrons can only exist in the same orbital if they have opposite spin
When there is more than one orbital in the same sub-level, electrons first go one in each, with the same spin, before pairing up
What is Hund's Rule?
Electrons fill lower sub-levels energy first
Electrons can only exist in the same orbital if they have opposite spin
When there is more than one orbital in the same sub-level, electrons first go one in each, with the same spin, before pairing up
What is the Aufbau Principle
Electrons fill lower sub-levels energy first
Electrons can only exist in the same orbital if they have opposite spin
When there is more than one orbital in the same sub-level, electrons first go one in each, with the same spin, before pairing up
Which of the 3 rules/principles is being broken in this image of orbital notation?
Aufbau
Hund
Pauli
Which of the 3 rules/principles is broken?
Aufbau
Hund
Pauli
Which of the 3 rules/principles is broken?
Aufbau
Hund
Pauli
