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प्रश्न
______ forms the basis of the modern periodic table.
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उत्तर
Atomic number forms the basis of the modern periodic table.
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संबंधित प्रश्न
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
From the standpoint of atomic structure, what determines which element will be the first and which the last in a period the periodic table?
State the term
The tabular arrangement of elements in horizontal rows and vertical columns _________
Name two elements in each case: Lanthanides
Give the symbol and valency of the following element and radical.
Magnesium
Give the symbol and valency of the following element and radical.
Bisulphite
Group 13 to 18 : p block : : _______ : d block
The arrangement of elements in the Modem Periodic Table is based on their ______
State the group and period, of the element having three shells with three electrons in valence shell.
Name the metalloids in the first twenty elements.
