CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

In Mendeleev's periodic table, the elements were arranged in the increasing order of their atomic masses. However, cobalt with atomic mass of 58.93 amu was placed before nickel having an atomic mass of 58.69 amu. Reason for the same is that :

A
the elements with similar size can be grouped together
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
the elements with different properties can be grouped together
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
the elements with similar properties can not be grouped together
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
the elements with similar properties can be grouped together
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D the elements with similar properties can be grouped together
According to Mendeleev's classification, the properties of elements are the periodic function of their atomic masses and there is a periodic recurrence of elements with similar physical and chemical properties.

Noble gas being inert, could be placed in a separate group without disturbing the original order.

Hence the correct option is D.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Early Models of Periodic Table
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon