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प्रश्न
Fill in the blank:
The element lithium in the Modern Periodic Table with valency 1+ belongs to the group ______.
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उत्तर
The element lithium in the Modern Periodic Table with valency 1+ belongs to the group 1.
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संबंधित प्रश्न
How were the positions of cobalt and nickel resolved in the modern periodic table?
Which of the following are the correct characteristics of isotopes of an element?
(i) same atomic mass
(ii) same atomic number
(iii) same physical properties
(iv) same chemical properties
(a) (i), (ii) and (iv)
(b) (ii), (iii) and (iv)
(c) (ii) and (iii)
(d) (ii) and (iv)
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.
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
Name the type of elements which have outermost shell incomplete.
Give the symbol and valency of the following element and radical.
Calcium
Give the symbol and valency of the following element and radical.
Chlorine [Chloride]
p-block is composed of groups 1 and 2.
The arrangement of elements in the Modem Periodic Table is based on their ______
1H2 is an isotope of hydrogen. In the modern Periodic Table it will ______.
