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प्रश्न
Fill in the blank:
The element lithium in the Modern Periodic Table with valency 1+ belongs to the group ______.
उत्तर
The element lithium in the Modern Periodic Table with valency 1+ belongs to the group 1.
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संबंधित प्रश्न
How does the electronic configuration of an atom relate to its position in the Modern Periodic Table?
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.
State how the valency of elements varies in a group of the periodic table?
The following diagram shows a part of the periodic table in which the elements are arranged according to their atomic numbers. (The letters given here not the chemical symbols of the elements):
| a 3 |
b 4 |
c 5 |
d 6 |
e 7 |
f 8 |
g 9 |
h 10 |
|
| i 11 |
j 12 |
k 13 |
l 14 |
m 15 |
n 16 |
o 17 |
p 18 |
(i) Which element has a bigger atom, a or f?
(ii) Which element has a higher valency, k or o?
(iii) Which element is more metallic i or k?
(iv) Which element is more non-metallic, d or g?
(v) Select a latter which represents a metal of valency 2.
(vi) Select a letter which represents a non-metal of valency 2.
Write a short note.
Position of isotopes in the Mendeleev’s and the modern periodic table.
Explain structure of modern periodic table in short.
The arrangement of elements in the Modem Periodic Table is based on their ______
Which of the following elements would lose an electron easily?
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?
Match the atomic number with the following:
An element of group 2.
