Question : Which of the following are members of 15 naturally occurring metallic chemical elements whose atomic numbers are between 57 and 71?
Option 1: Alkali metals
Option 2: Lanthanides
Option 3: Halogens
Option 4: Actinides
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: Lanthanides
Solution : The correct answer is Lanthanides.
Lanthanides are a series of 15 metallic elements from lanthanum to lutetium in the periodic table, and their atomic number ranges from 57 to 71. The modern periodic table consists of 118 elements arranged in 18 groups and seven periods. Lanthanides and Actinides are the two series of 'F Block' elements and these are placed in Group 3 and occupy Periods 6 and 7 of the periodic table, respectively.
Candidates can download this ebook to know all about SSC CGL.
Admit Card | Eligibility | Application | Selection Process | Preparation Tips | Result | Answer Key
Question : Lanthanides are often called:
Question : Isobars have ______.
Question : Heavy metals got their name because compared to other atoms they have
Question : On a cold day when the room temperature is 15o C, the metallic cap of a pen becomes much colder than its plastic body, though both are the same temperature of 15o C, because:
Question : The Security Council of UN consists of
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile