How to remember f block elements in hindi?
Answers
F-block elements have their valence electrons in f-orbitals. They are also known as inner transition elements. They can be divided into Lanthanides (also known as rare earth elements) and Actinides that are highly reactive to halogens and chalcogens like lanthanides but they react more easily.
Lanthanides include Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Samarium (Sm), Europium (Eu), Gadolinium (Gd), Terbium (Tb), Dysprosium (Dy), Holmium (Ho), Erbium (Er), Thulium (Tm), Ytterbium (Yb) and Lutetium (Lu).
We can learn all these in three parts:
1. Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), and Samarium (Sm)
Mnemonic for Lanthanides Part 1: Celina aur Priety Ne dande se Pammy aur Simmy ko mara.
2. Europium (Eu), Gadolinium (Gd), Terbium (Tb), Dysprosium (Dy), and Holmium (Ho)
Mnemonic for Lanthanides Part 2: Europe G(d)aya to TB(b) aur Di(y)arrohoea Ho gaya.
Read as: Europe Gaya to TB aur Diarrohoea Ho gaya.
3. Erbium (Er), Thulium (Tm), Ytterbium (Yb) and Lutetium (Lu)
Mnemonic for Lanthanides Part 3: E re, dekh Tamatar Yellow aur bLue hain.
Actinides include these f-block elements – Thorium (Th), Protactinium (Pa), Uranium (U), Neptunium (Np), Plutonium (Pu), Americium (Am), Curium (Cm), Berkelium (Bk), Fermium (Fm), Mendelevium (Md), Nobelium (No), and Lawrencium (Lr).
We can learn all these in three parts too:
1.Thorium (Th), Protactinium (Pa), Uranium (U), and Neptunium (Np)
Mnemonic for Actinides Part 1: Thode Pehelwan Unse Niptengey.
2.Plutonium (Pu), Americium (Am), Curium (Cm), Berkelium (Bk)
Mnemonic for Actinides Part 2: Purane Aam K(C)am Bikenge.
Read as: Purane Aam Kam Bikenge.
3. Fermium (Fm), Mendelevium (Md), Nobelium (No), and Lawrencium (Lr)
Mnemonic for Actinides Part 3: Itni Family aMdani mein No Ladki rajee.