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प्रश्न
Give the symbol and valency of the following element and radical.
Aluminium
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उत्तर
| Element/Radical | Symbol | Valency |
| Aluminium | Al | three |
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संबंधित प्रश्न
Consider the following elements:
Na, Ca, Al, K, Mg, Li
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Name two elements in each case:
Transition element
An element barium has the atomic number 56. Look up its position in the periodic table and answer the following question.
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What is the group number of T?
Answer the following question.
Define the atomic size. Give its unit of measurement. In the modern periodic table what trend is observed in the atomic radius in a group and a period and why is it so?
Give the symbol and valency of the following element and radical.
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Choose an element from period 3 of modern periodic table that matches the description given below in instance. Give a reason for your choice.
It has same valency as Lithium.
