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प्रश्न
1H2 is an isotope of hydrogen. In the modern Periodic Table it will ______.
विकल्प
be placed before hydrogen
be placed after hydrogen
be placed at the same position as hydrogen
not have any position in the Periodic Table
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उत्तर
1H2 is an isotope of hydrogen. In the modern Periodic Table it will be placed at the same position as hydrogen.
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संबंधित प्रश्न
Which element has two shells, both of which are completely filled with electrons?
What is a group in the periodic table?
The atomic numbers of the three elements X, Y and Z are 2, 6 and 10 respectively.
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(ii) Which two elements belong to the same period?
Give reasons for your choice.
The electronic configuration of an element T is 2, 8, 8, 1.
What is the group number of T?
Name an alkali metal in period 3 and halogen in period 2.
Group 13 to 18 : p block : : _______ : d block
______ group elements are called alkaline earth metals.
An element belonging to 3d series of modern periodic table has spin magnetic moment = 5.92 B.M. in +3 oxidation state. The atomic number of elements are ______.
An element ‘M' has 50% of the electrons filled in the 3rd shell as in the 2nd shell. The atomic number of ‘M’ is ______.
Name the non-metals in the first twenty elements.
