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WorksheetsG-9 CHEMISTRY ELECTRONIC CONFIGURATION
Total questions: 15
Worksheet time: 12mins
No two electrons in the same atom can have the same four quantum numbers.
Aufbau Principle
Pauli's Exclusion Principle
Hund’s Rule
Noble gas notation
What atom matches this electron configuration?
1s22s22p63s2
Calcium
Magnesium
Aluminum
Potassium
What is an orbit ?
An orbit is a part of the proton around the nucleus of an atom.
An orbit is a part of an electron around the nucleus of an atom.
An orbit is a part of the neutron around the nucleus of an atom
An orbit is a part of the nucleons around the nucleus of atom
orbitals fill in order of........
increasing size
increasing charge
increasing energy
Write the electronic configuration for sodium Na (Z=11)
1s2 2s2 2p6
1s2 2s2 2p6 3s2
1s2 2s2 2p6 3s1
1s2 2s2 2p6 3s2 3p4
Which principle states that electrons fill the orbitals of lower energy level first?
aufbau
Hund
Pauli
Paschen
What is the maximum number of electrons in the third shell of an atom?
2
18
8
32
Which of the following electronic configuration match an oxygen atom?
(Z: 8)
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5
1s2 2s2 2p6
1s2 2s2 2p4
1s2 2s2 2p6 3s2 3p6 4s2 3d1
