Advertisements
Advertisements
प्रश्न
Give the symbol and valency of the following element and radical.
Nitrate
Advertisements
उत्तर
| Element/Radical | Symbol | Valency |
| Nitrate | \[\ce{NO3}\] | one |
APPEARS IN
संबंधित प्रश्न
The position of three elements A, B and C in the Periodic Table are shown below –
|
Group 16
|
Group 17
|
|
−
|
−
|
|
−
|
A
|
|
−
|
−
|
|
B
|
C
|
(a) State whether A is a metal or non-metal.
(b) State whether C is more reactive or less reactive than A.
(c) Will C be larger or smaller in size than B?
(d) Which type of ion, cation or anion, will be formed by element A?
Fill in the following blank with suitable word:
The horizontal rows in a periodic table are called ...............
State how the valency of elements varies in a period of the periodic table?
What is the main characteristic of the last elements in the periods of the periodic table? What is the general name of such elements?
Helium and neon are unreactive gases. What, if anything, do their atoms have in common?
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.
Structure of the modern periodic table.
What is meant in the periodic table by a period?
The d-block elements are called as ______ elements.
Which one of the following elements exhibit maximum number of valence electrons?
