GENERAL KNOWLEDGE

GK

GENERAL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Actinides are the elements with atomic numbers from
A
36 from 43
B
89 to 103
C
97 to 104
D
101 to 115
Explanation: 

Detailed explanation-1: -Actinides are a group of 15 elements with atomic numbers ranging from 89 to 103. Actinium, the initial component in the series, inspired their names.

Detailed explanation-2: -Element 103 in the periodic table is called lawrencium. It was first synthesised in 1961 at what was then called the Lawrence Radiation Laboratory, situated close to San Francisco.

Detailed explanation-3: -Q. Elements with atomic number greater than 92 are called actinides.

There is 1 question to complete.