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प्रश्न
Give the symbol and valency of the following element and radical.
Magnesium
उत्तर
| Element/Radical | Symbol | Valency |
| Magnesium | Mg | two |
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संबंधित प्रश्न
Fill in the following blank with suitable word:
The basis for modern periodic table is ...............
where should hydrogen be placed in the modern periodic table? Give reason for your answer.
How would the tendency to gain electrons change on moving from left to right in a period of the periodic table?
What is the number of valence electrons in the atoms of first elements in a period?
How do the atomic radii of elements change as we go from left to right in a period of the periodic table?
Explain why, the first period of the periodic table has only two elements whereas second period has eight elements
(b) What is the number of elements is 3rd period, the modern periodic table?
Correct the statement.
Transition elements are placed at extreme right of the periodic table.
Mendeleev's periodic table : atomic mass : : Modern periodic table : _______
Define periods of modern periodic table.
