
The atomic number of cerium (Ce) is 58. The correct electronic configuration of is
a.)
b.)
c.)
d.)
Answer
524.7k+ views
1 likes
Hint: Nearest noble gas element to cerium is xenon and the atomic number of xenon is 56.
Atomic number is the number of protons present in the molecule. For every element in a periodic table it is different.
Atomic number of cerium is 58.
Complete answer:
So, for writing the noble gas configuration of an element symbol of the last noble gas that came before the element which is followed by the configuration of the electrons left.
Last inert gas element that comes before cerium is xenon.
Symbol of xenon is Xe.
Atomic number of xenon is 56 and of cerium is 58.
So, the difference of electrons between cerium and xenon is 2.
Therefore, electronic configuration of cerium is
but the electron from moves to therefore its electronic configuration becomes
For the formation of ion, cerium loses three electrons to form .
So, the electron will be removed from outer orbitals that is 6s and 4f
Therefore, the electronic configuration of comes out be or simply
Correct answer is option A.
Note: The noble gas configuration of an element is written by writing the symbol of the last noble gas that came before the element which is followed by the configuration of the electrons left.
Atomic number is the number of protons present in the molecule. For every element in a periodic table it is different.
Atomic number of cerium is 58.
Complete answer:
So, for writing the noble gas configuration of an element symbol of the last noble gas that came before the element which is followed by the configuration of the electrons left.
Last inert gas element that comes before cerium is xenon.
Symbol of xenon is Xe.
Atomic number of xenon is 56 and of cerium is 58.
So, the difference of electrons between cerium and xenon is 2.
Therefore, electronic configuration of cerium is
but the electron from
For the formation of
So, the electron will be removed from outer orbitals that is 6s and 4f
Therefore, the electronic configuration of
Correct answer is option A.
Note: The noble gas configuration of an element is written by writing the symbol of the last noble gas that came before the element which is followed by the configuration of the electrons left.
Latest Vedantu courses for you
Grade 9 | CBSE | SCHOOL | English
Vedantu 9 CBSE Pro Course - (2025-26)
School Full course for CBSE students
₹37,300 per year
Recently Updated Pages
Master Class 11 Computer Science: Engaging Questions & Answers for Success

Master Class 11 Accountancy: Engaging Questions & Answers for Success

Master Class 11 Physics: Engaging Questions & Answers for Success

Master Class 11 Business Studies: Engaging Questions & Answers for Success

Master Class 11 Maths: Engaging Questions & Answers for Success

Master Class 11 Chemistry: Engaging Questions & Answers for Success

Trending doubts
Which one is a true fish A Jellyfish B Starfish C Dogfish class 11 biology CBSE

Difference Between Prokaryotic Cells and Eukaryotic Cells

1 ton equals to A 100 kg B 1000 kg C 10 kg D 10000 class 11 physics CBSE

One Metric ton is equal to kg A 10000 B 1000 C 100 class 11 physics CBSE

How much is 23 kg in pounds class 11 chemistry CBSE

Net gain of ATP in glycolysis a 6 b 2 c 4 d 8 class 11 biology CBSE
