Advertisements
Advertisements
प्रश्न
Name the unit in which the radius of an atom is usually expressed.
Advertisements
उत्तर
The radius of an atom is usually expressed in nanometre (nm).
APPEARS IN
संबंधित प्रश्न
Write the names of the elements present in the:-
Ammonia
Fill in the blank
An ion with positive charge is called ______
Define: Chemical bond
What are orbits or shells ?
Who originated the word ‘atom’ ?
Fill in the blank
If an atom loses an electron, it acquires ______ a charge.
Find the mass of 2 moles of nitrogen atoms.
The electron shell ______ is nearest to the nucleus.
Compare:
Chlorine atom and chloride ion, with respect to
Atomic structure
Electrical state
Draw the diagrams representing the atomic structures of the following: Neon
Select the correct answer to the statement given below:
The smallest particle of a substance – capable of independent existence and which retains the characteristics of the substance.
The smallest particle of matter that can exist by itself is ______.
Assertion: An atom is electrically neutral.
Reason: Atoms have equal number of protons and electrons.
In all atoms of an element
Atoms of different elements having the same number of ______ are called isotones.
Write any two observations which support the fact that atoms are divisible.
What is the fundamental particle of an element?
What are the 3 most abundant atoms on the earth?
A small block slides down on a smooth inclined plane, starting from rest at time t = 0. Let Sn be the distance travelled by the block in the interval t = n – 1 to t = n. Then, the ratio `S_n/(S_(n + 1))` is ______.
