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प्रश्न
Explain why all the elements of a period have different chemical properties.
State the reason for the following observation:
All the elements in a period have different chemical properties.
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उत्तर
All the elements of a period have different chemical properties because the number of valence electrons for each varies.
संबंधित प्रश्न
What is periodicity in properties of elements with reference to the Modern Periodic Table?
What is the significance of atomic number in the modern classification of elements? Explain with the help of an example.
The atomic numbers of four elements P, Q, R and S are 6, 8, 14 and 16 respectively. Out of these, the element known as metalloid is:
(a) P
(b) Q
(c) R
(d) S
How would the tendency to lose electrons change as we go from left to right across a period of the periodic table?
State whether the following statement is true or false:
On going down in a group of the periodic table, the number of valence electrons increases.
Give the symbol and valency of the following element and radical.
Nitrate
Give the symbol and valency of the following element and radical.
Sulphite
Noble gases belong to______ group of the periodic table.
What is the symbol of the element Tungsten?
Match the atomic number with the following:
A rare gas.
