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प्रश्न
State what is meant by the term chemical formula.
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उत्तर
Chemical formula is the representation of a substance by means of symbols.
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संबंधित प्रश्न
How does the electronic configuration of an atom relate to its position in the Modern Periodic Table?
Name two elements in each case:
Actinides
Name the type of elements which have outermost shell complete.
Name the type of elements which have two outermost shell incomplete.
Give the symbol and valency of the following element and radical.
Bicarbonate
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.
Three elements A, B and C have 3, 4 and 2 electrons respectively in their outermost shell. Give the group number to which they belong in the Modern Periodic Table. Also, give their valencies.
______ group elements are called alkaline earth metals.
State the group and period, of the element having three shells with three electrons in valence shell.
What is the general name of the last elements of the Periodic Table?
