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प्रश्न
State the number of elements in Period 3 of the Periodic Table.
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उत्तर
Period 3 is a short period that has 8 elements.
संबंधित प्रश्न
Name the scientist who first of all showed that atomic number of an element is a more fundamental property than its atomic mass.
State modern periodic law.
Write a short note.
Position of isotopes in the Mendeleev’s and the modern periodic table.
What is the number of elements in the 1st period?
Give the symbol and valency of the following element and radical.
Calcium
Give the symbol and valency of the following element and radical.
Zinc
Write a scientific reason.
There was ambiguity about the correct position of hydrogen in Mendeleev’s periodic table.
On moving from left to right in a period in the periodic table, the size of the atom ______
The amount of energy released when one or more electrons is added to the neutral atom is ______
If an element X is placed in group 14, what will be the formula and the nature of bonding of its chloride?
