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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
Consider the following elements:
20Ca, 8O, 18Ar, 16S, 4Be, 2He
Which of the above elements would you expect to be:
(i) very stable?
(ii) in group 2 of the periodic table?
(iii) in group 16 of the periodic table?
Name two elements in each case:
Actinides
State the modern periodic law for the classification of elements. How many (i) groups and (ii) periods are there in the modern periodic table?
Give the symbol and valency of the following element and radical.
Sodium
What are the elements.
The d-block elements are called as ______ elements.
p-block is composed of groups 1 and 2.
Element ‘X’ forms a chloride with the formula XCl2, which is solid with a high melting point. X would most likely be in the same group of the periodic table as: ______
Which of the following statements about the Modern Periodic Table is correct:
Spot the error:
The elements of group 13 are called the carbon family.
