Electronic Configuration
Chemistry ⇒ Atomic Structure and the Periodic Table
Electronic Configuration starts at 8 and continues till grade 12.
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See sample questions for grade 11
A certain element has the electronic configuration [Ne] 3s2 3p4. What is its group number in the modern periodic table?
Describe the difference between the electronic configuration of a neutral atom and its cation.
Explain Hund's Rule and its significance in electronic configuration.
Explain why copper (Cu) has an anomalous electronic configuration.
Explain why the electronic configuration of chromium (Cr) is [Ar] 4s1 3d5 instead of [Ar] 4s2 3d4.
How many electrons are present in the valence shell of phosphorus (atomic number 15)?
How many unpaired electrons are present in the ground state of a nitrogen atom (atomic number 7)?
State the Aufbau principle in your own words.
What is the electronic configuration of Fe2+ (iron(II) ion, atomic number 26)?
What is the maximum number of electrons that can be accommodated in the n = 3 shell?
Which element has the following electronic configuration: 1s2 2s2 2p6 3s2 3p4?
Write the condensed (noble gas) electronic configuration for bromine (Br, atomic number 35).
Write the electronic configuration of chlorine (Cl, atomic number 17).
Write the full electronic configuration for the element with atomic number 15.
