Difference in Atom, Element and Molecule:
Atom is the smallest indivisible part of matter which retains its identity.
An element is a pure substance which is made up of only one kind of atoms.
A molecule now, is a formed when two or more atoms combine.
The smallest particle of a matter is called……
a) atoms
b) elements
c) molecules
d) compounds
…………………is made of one type of atoms.
a) atom
b) element
c) molecule
d) compound
When two or more atoms joined together, the resultant species is called……
a) atom
b)element
c) molecule
d) compound
Which of the following element/s exist/s as individual atoms?
a) Helium
b) Oxygen
c) Nitrogen
d) Carbon
Which of the following cannot exist as individual atoms and they pairs as a molecule?
a)Hydrogen
b) Oxygen
c) Nitrogen
d) all of these
