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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
In the Modern Periodic Table, which are the metals among the first ten elements?
What is a period in a periodic table?
On the basis of electronic configuration, how will you identify chemically similar elements?
Define:
Periodic table
Arrange the elements of second and third periods in increasing order of their atomic size.
Third Period.
In the Modern Periodic Table – atoms of all elements are arranged according to their increasing order of – atomic numbers. An atom of nitrogen has seven protons and seven electrons. State what would be its atomic number.
Give the chemical formula of carbonic acid
State what the group number in the Modern Periodic Table signifies. Give a reason why elements in the same group, have similar valency and similar chemical properties.
What are the elements.
Spot the error:
The elements of group 13 are called the carbon family.
