Advertisements
Advertisements
प्रश्न
Write any two observations which support the fact that atoms are divisible.
Advertisements
उत्तर
With the discovery of electrons and protons it was established that atom is divisible and is made up of negatively charged electrons and positively charged protons along with some neutral particles called neutrons.
APPEARS IN
संबंधित प्रश्न
TRUE \ FALSE
Elements combine in definite proportions to form compounds.
WRITE SHORT ANSWER
Define an ionic compound.
Write the names of the elements present in the following compound.
Common salt
Write the names of the elements present in the:-
Glucose
What does an atom consist of ? Explain.
Give the charge and the mass of an electron, proton and neutron present in an atom ?
An atom has 13 protons and 14 neutrons.
What is the atomic number of the atom ?
How many times is a proton heavier than an electron?
What is an atom ? How do atoms usually exist ?
One nm is equal to :
Give scientific reason.
All the mass of an atom is concentrated in the nucleus.
Select the correct answer to the statement given below:
Imaginary path around the nucleus of an atom in which electrons revolve.
The smallest particle of matter that can exist by itself is ______.
Rewrite the given sentence in correct form.
Elements contain two or more kind of atoms and compounds contain only one kind of atom.
State true or false. If false, correct the statement.
An atom is electrically neutral.
Draw the structure of an atom and explain the position of the sub-atomic particles.
An atom of an element has no electron. Will that atom have any mass or not? Can an atom exist without electron? If so then give example.
An element is composed of ______ atoms.
The volume occupied by 4.4 g of CO2 at S.T.P ______
Atoms of different elements having the same number of ______ are called isotones.
