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Flashcards in Electronic Structure Deck (9)
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1
Q

Energy level

A

The fixed energy value that an electron in an atom may have

2
Q

Ground state

A

Lowest energy state

3
Q

Sublevel

A

Subdivision of a main energy level and consists of one or more orbitals of the same energy

4
Q

Orbital

A

A region in space within which there is a high probability of finding an electron

5
Q

Heisenberg’s uncertainty principle

A

It is not possible to determine both the position and the momentum of an electron in an atom simultaneously

6
Q

Atomic radius

A

Half the distance between the nuclei of two atoms of the same element that are joined together by a single covalent bond

7
Q

First ionisation energy

A

The minimum energy required to completely remove the most loosely bound electron from one mole of neutral gaseous atom in the ground state

8
Q

Aufbau principle

A

When building up the electronic configuration of an atom in its ground state, the electrons occupy the lowest available energy level

9
Q

Hund’s rule of maximum multiplicity

A

When two or more orbitals of equal energy are available, the electrons occupy them singly first before filling them in pairs