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प्रश्न
Noble gases belong to______ group of the periodic table.
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उत्तर
Noble gases belong to 18th group of the periodic table.
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संबंधित प्रश्न
Consider the following elements:
Na, Ca, Al, K, Mg, Li
Which of these elements belong to the same period of the periodic table?
The electronic configuration of an element T is 2, 8, 8, 1.
What is the period number of T?
Name an element of group 18 which can form compounds.
In the Modern Periodic Table – atoms of all elements are arranged according to their increasing order of – atomic numbers. An atom of nitrogen has seven protons and seven electrons. State what would be its atomic number.
Give the chemical formula of sodium bicarbonate
______ and ______ are called inner transition elements.
Which of these belong to the same period?
| Element | A | B | C |
| Atomic number | 2 | 10 | 5 |
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 ______.
1H2 is an isotope of hydrogen. In the modern Periodic Table it will ______.
Name the metalloids in the first twenty elements.
