Atoms and Molecules
Trending Questions
Compare the density of the three states of matter.
Define atom
What is the reason behind molecules existing in a free state?
Element consists of similar kinds of atoms.
True
False
How do atoms usually exist in nature?
An atom is the basic unit of a/an___________(element/compound).
What is the relation between an atom and a molecule
Define polyatomic.
The smallest particle that makes up the matter is__________.
- D. Mendeleev
- R. W. Boyle
- J. Dalton
- M. Curie
The number of atoms in a molecule of the elementary substance is called:
Atomic number
Avogadro number
Atomic mass scale
Atomicity
What is an element? Name some common elements.
What is atomicity of a gas ?
8(a) Define the term atom.
Match the columns.
Column 1 | Column 2 |
---|---|
Solids |
Compound consisting of nitrogen and hydrogen |
Liquids |
Exists as single atom |
Gases |
Fixed mass, shape and volume |
Ammonia |
Very weak interparticle forces of attraction |
Krypton |
Take the shape of the containers they are stored in |
Who isolated potassium and sodium?
An________of an element shows all the properties of that element.
What are atoms?
2. Tick the most appropriate answer:
The force of attraction between different kinds of molecules is called the force of
intermolecular attraction
cohesion
adhesion
none of these
Give one word or phrase for the following statement.
Molecules have two atoms of the same kind.
A. Difference the following
Monoatomic , Diatomic , Triatomic and Polyatomic
__________ is made-up of one or more atoms which may be same or different.
2. The smallest particle of an element which always takes part in a chemical reaction, is called a/an __________. (atom/molecule)
The smallest particle of an element is called an _________.
- 6.25×1018
- 6.022×1023
- 96500
- 3.12×1018
Differentiate between an atom and a molecule.
Is there anything present I side the sub atomic particles of an atom?
Difference between element and atom.With examples