Advertisements
Advertisements
प्रश्न
How were the positions of isotopes of an element decided in the modern periodic table?
उत्तर
The isotopes of elements are not given a separate place in the periodic table. This is because isotopes have the same atomic number and a different atomic mass, and the modern periodic table is based on the atomic number of elements. Hence, to give it a separate place, the elements should be arranged according to their atomic mass.
APPEARS IN
संबंधित प्रश्न
Write the merits of the modern periodic table over Mendeleev’s Periodic table
State modern periodic law.
What is the name of those elements which divide metals and non-metals in the periodic table?
The atomic numbers of four elements P, Q, R and S are 6, 8, 14 and 16 respectively. Out of these, the element known as metalloid is:
(a) P
(b) Q
(c) R
(d) S
Name the type of elements which have two outermost shell incomplete.
State the main aim of classifying elements. Which is the more fundamental property of elements that is used in the development of Modern Periodic Table? Name and state the law based on this fundamental property. On which side of the periodic table one can find metals, non-metals and metalloids?
Give the symbol and valency of the following element and radical.
Bisulphate
Give the symbol and valency of the following element and radical.
Bisulphite
The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
What is the general name of the last elements of the Periodic Table?
