The names of some compounds are provided below. Identify the metals and non-metals present in them.
Sr. No.
Name of Compound
Name of metal and non-metal
Sr. No.
Name of Compound
Name of metal and non-metal
1
NaCl
9
ZnCl2
2
KOH
10
MnO2
3
Pb(NO3)2
11
CoCl2
4
Ca(OH)2
12
PbO
5
MgCl2
13
HgCl2
6
Fe2O3
14
As2O3
7
CuO
15
H3PO4
8
CdCl2
16
H2SO4
Important Questions on Element, Compound and Chemical Reaction
In this diagram, 
, 
and 
represents proton, electron and neutron respectively. Find the atomic numbers and mass numbers of carbon and oxygen. How will you express this through symbols?
In the following table, diagrams of the atoms of lithium, sodium, magnesium and chlorine are shown. Complete the table with information regarding the quantities mentioned in it.
| Atom | Proton | Electron | Neutron | Mass number | Atomic number | Symbol of the element |
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Fill up the blank spaces in the following table.
Fill up the blank spaces in the following table.
Construct the formulae of the compounds using above table.
In the following table a represents a shared electron pair. Let us find out the similarities among the various entries in the table and have a grasp of the whole thing.
