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romiroy12
romiroy12
@romiroy12
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Joined: Oct 18, 2020
Last seen: Jul 3, 2023
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Topics: 2049 / Replies: 0
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Topic
What was the basis of Modem Periodic Law?
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 107
Topic
State the modern periodic law of classification of elements.
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 91
Topic
Name any three metalloids.
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 100
Topic
Which chemical property of element was used by Mendeleev for classification?
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 104
Topic
Why did Mendeleev’s left some gaps?
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 119
Topic
What was the basis of Mendeleev’s Periodic Law?
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 69
Topic
What was the basis of classification of elements by Newland?
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 117
Topic
Why was the system of classification of elements into triads not found suitable?
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 230
Topic
Give one example of such triads.
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 121
Topic
How did Dobereiner classify the elements?
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 87
Topic
What was the earliest attempt to classify elements?
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 95
Topic
What was need of classification of elements?
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 132
Topic
How many elements are occurring naturally?
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 98
Topic
How many elements are known the date?
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 105
Topic
Match Column I with Column II. Column I - Column II (i) Most electronegative element - A. Nitrogen (ii) Group 16 element with largest atomic radius - B. Polonium
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 354
Topic
The tendency to lose electrons from the outermost shell of an atom is called metallic character of an element. (True/False)
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 202
Topic
Valency of elements in a particular group is different. (True/False)
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 241
Topic
Each period marks a new electronic shell getting filled. (True/False)
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 519
Topic
Modem periodic law states that properties of elements are a periodic function of their atomic masses. (True/False)
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 103
Topic
There are 7 groups and 18 periods in a modem periodic table. (True/False)
5 years ago
Forum
Periodic Classification Of Elements
Replies: 0
Views: 103
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