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प्रश्न
What happens to the number of valence electrons in the atoms of elements as we go down in a group of the periodic table?
उत्तर
On moving down in a group of the periodic table, the number of valence electrons in the atoms of elements remains the same.
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संबंधित प्रश्न
Name two elements you would expect to show chemical reactions similar to magnesium. What is the basis for your choice?
Name the scientist who prepared modern periodic table.
The three elements having chemical symbols of Si, B and Ge are:
(a) all metals
(b) all non-metals
(c) all metalloids
(d) Si is metalloid, B is metal and Ge is non-metal
Explain why All the elements of a period have different chemical properties.
Name the scientist who stated the modern periodic law.
What are horizontal rows and vertical columns in a periodic table known as?
Name the type of elements which have one electron short of octet.
Name the type of elements which have two electrons in the outermost orbit.
Answer the following in respect of element `31/15 P `
To which group and period does it belong?
Name and state the following with reference to the elements of the first three periods of the periodic table.
A covalent compound formed by an element in period 2 and a halogen.
