Login
Home
TOP
Send feedback
Login
Subjects
Science TNSB Mentoring
Class 9
Periodic classification of elements
The early quest for elemental order
5.
Newlands’ law of Octaves
Question:
4
m.
Choose the right pair of elements:
Example:
Element:
Hydrogen ;
Pair :
Fluorine.
Element
Pair
Fluorine
Potassium
Chlorine
Chromium
Lithium
Argon
Cupper
Rubidium
Argon
Indium
Potassium
Selenium
Zirconium
Silver
Cadmium
Argon
Tin
Cupper
Silver
Zirconium
Caesium
Argon
Cupper
Potassium
Login
or
Fast registration
Previous task
Exit to the topic
Next task
Send feedback
Did you find an error?
Send it to us!