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प्रश्न
Name the following metal:
A metal present in period 3, group 1 of the periodic table.
उत्तर
Sodium
संबंधित प्रश्न
How many rows and columns are there in the Modem Periodic Table?
Fill in the following blank with suitable word:
Group 1 elements are called ...............
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.
The modern periodic table was prepared by ______.
The elements A, B, C and D belong to groups 1, 2, 14 and 17 respectively of the periodic table. Which of the following pairs of elements would produce a covalent bond?
(i) A and D
(ii) C and D
(iii) A and B
(iv) B and C
(v) A and C
Correct the statement.
Transition elements are placed at extreme right of the periodic table.
Name two elements in each case:
Transition element
The electronic configuration of an element T is 2, 8, 8, 1.
What is the group number of T?
Give the symbol and valency of the following element and radical.
Sulphite
If an element X is placed in group 14, what will be the formula and the nature of bonding of its chloride?
