Question

[Xe]6s²4f⁷ ...really don't understand would love help​

Answer 1

Answer:

Noble gas configuration of Europium (Eu)

Explanation:

• We are supposed to identify the element with the configuration given.
• It is known as noble gas configuration of an element, where noble gases are used to write the configuration of the element.
• This is done by first identifying the atomic number of the element in question, then identify a noble gas which has a less atomic number that is close to the element in Question.
• Then distribute the remaining electrons on the remaining orbitals of the element.

In this case;

The noble gas configuration is [Xe]6s²4f⁷

The noble gas is xenon which has an atomic number of 54

Therefore;

The atomic number of the element in question is 54 + 2 +7 = 63

Hence,

The element in question is Europium (Eu) with an atomic number of 63

Thus;

[Xe]6s²4f⁷ is the noble gas configuration of Europium (Eu)