Electron Configuration

Question 1

is the description of how the electrons of an atom fill up the orbitals

Answer 1

Electron Configuration

Question 2

are electrons found at the outermost shell of an atom and the ones which are directly involved in chemical reaction.

Answer 2

Valence Electrons

Question 3

According to this principle, the electrons of ground state atoms (uncharged atoms) tend to fill first the shell, subshell, and orbitals that produce the lowest energy for the atom. In other words, electrons fill up from lower energy to higher energy in the order below

Answer 3

Aufbau Principle

Question 4

Electrons enter orbitals of lowest energy first

Answer 4

aufbau Principle

Question 5

Electrons are added one at a time to the lowest energy orbitals available until all the electrons of the atom have been accounted for.

Answer 5

aufbau Principle

Question 6

The last electron that enters an orbital is called the ______ electron

Answer 6

differentiating

Question 7

It makes the configuration of an atom different from that of the other atom.

Answer 7

aufbau Principle

Question 8

When orbitals are of about the same energy, each orbital is filled with one electron with parallel spins before any of them is filled with the opposite spin electrons.

Answer 8

hund's rules

Question 9

states that electrons pair only after the orbitals in the same subshell are filled with single electrons.

Answer 9

hund's rule

Question 10

States that only two electrons can occupy the same orbital and two electrons must spin in opposite directions.

Answer 10

paul exclusion principle

Question 11

When electrons with opposite spin occupy an orbital, the electrons are said to be paired.

Answer 11

paul exclusion principle

Question 12

A single electron present in an orbital is said to be unpaired.

Answer 12

paul exclusion principle

Question 13

A single electron present in an orbital is said to be _____.

Answer 13

unpaired