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प्रश्न
Fill in the following blank with suitable word:
The basis for modern periodic table is ...............
उत्तर
The basis for the modern periodic table is the atomic number.
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संबंधित प्रश्न
Fill in the following blank with suitable word:
Group 17 elements are known as ...............
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
An element barium has atomic number 56. Look up its position in the periodic table and answer the following question.
What will be the formula of its phosphate?
Give the symbol and valency of the following element and radical.
Calcium
Name the following:
The group of the Modern Periodic Table to which calcium [Ca2+] belongs.
Write scientific reason.
There was ambiguity about the correct position of hydrogen in Mendeleev’s periodic table.
In the modern periodic table, elements are arranged according to their ______
“Hydrogen occupies a unique position in Modern Periodic Table”. Justify the statement.
The maximum number of electrons that can be accommodated in s, p,d, and f subshells are ______.
Spot the error:
The elements of group 13 are called the carbon family.
