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प्रश्न
Give the symbol and valency of the following element and radical.
Potassium
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उत्तर
| Element/Radical | Symbol | Valency |
| Potassium | K | one |
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संबंधित प्रश्न
Give alongside is a part of the periodic table :
As we move horizontally from left to right:
| Li | Be | B | C | N | O | F | |
| Na | Mg | Al | Si | P | S | Cl |
(i) What happens to the metallic character of the elements?
(ii) What happens to the atomic size?
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.
What is the usual number of valence electrons and valency of group 18 elements of the periodic table?
Explain why, the first period of the periodic table has only two elements whereas second period has eight elements
What are the periods in a periodic table? Give two characteristics of each.
How does the electronic configuration of an atom relate to its position in the modern periodic table?
Which of the following statements about the Modern periodic table is correct?
Find the odd one out and give its explanation.
The inert gas which lies in the third period is ______
Define periods of modern periodic table.
