Periodic Classification Of Elements
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How were the positions of isotopes of an element decided in the modern periodic table? (b)...
By Jaiyush19, 4 years ago
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In the modern periodic table, which are the metals among the first ten elements? (b) What ...
By Jaiyush19, 4 years ago
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152

What is meant by (i) a group, and (ii) a period, in a periodic table? (b) How many periods...
By Jaiyush19, 4 years ago
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297

The basis for modern periodic table is……… (b) The horizontal rows in a periodic table are ...
By Jaiyush19, 4 years ago
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180

Which group of elements could be placed in Mendeleev’s periodic table later on, without di...
By Jaiyush19, 4 years ago
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111

State one example of a Dobereiner’s triad, showing in it that the atomic mass of middle el...
By Jaiyush19, 4 years ago
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276

Name two elements whose properties were predicted on the basis of their positions in Mende...
By Jaiyush19, 4 years ago
replies 1
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323

The three elements predicted by Mendeleev from the gaps in his periodic table were known a...
By Jaiyush19, 4 years ago
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208

Name two elements whose properties were predicted on the basis of their positions in Mende...
By Jaiyush19, 4 years ago
replies 1
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1
219

In the classification of the then known elements, Mendeleev was guided by two factors. Wha...
By Jaiyush19, 4 years ago
replies 1
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