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प्रश्न
Name the type of elements which have outermost shell incomplete.
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उत्तर
Representative elements
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संबंधित प्रश्न
Which of the following statement about the modern periodic table is correct?
(a) It has 18 horizontal rows known as periods.
(b) It has 7 vertical columns known as periods.
(c) It has 18 vertical columns known as groups.
(d) It has 7 horizontal rows known as groups.
Explain why all the elements of a period have different chemical properties.
What are the advantages of the periodic table?
What are the periods in a periodic table? Give two characteristics of each.
Answer the following in respect of element `31/15 P `
To which group and period does it belong?
Give the symbol and valency of the following element and radical.
Hydroxide
State what is meant by the term chemical formula.
Give the chemical formula of magnesium nitrate
Find the odd one out and give its explanation.
The amount of energy released when one or more electrons is added to the neutral atom is ______
