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प्रश्न
Define: An Atom:
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उत्तर
An Atom: Smallest particle of an element that can exist and have properties of an element.
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संबंधित प्रश्न
ANSWER IN DETAIL
Enlist the features of Bohr’s model of an atom. How did he correct the Rutherford’s model ?
Write the names of the elements present in the:-
Ammonia
Write the names of the elements present in the:-
Sodium hydroxide
Write the names of `"Na"_3"PO"_4` compounds :
Define: Mass number
What does an atom consist of ? Explain.
Define: Covalent bond
State Dalton’s atomic theory.
How did Neils Bohr visualise the atom ?
An atom has 13 protons and 14 neutrons.
What is the atomic number of the atom ?
Which has more atoms, 50 g of aluminium or 50 g of iron ? Illustrate your answer with the help of calculations.
(Atomic masses : Al = 27 u ; Fe = 25 u)
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form negative ion?
K: Potassium:: C: ______.
Draw the structure of an atom and explain the position of the sub-atomic particles.
The volume occupied by 1 mole of a diatomic gas at S.T.P is ______
Atoms of different elements having the same number of ______ are called isotones.
Which of the following has maximum number of atoms?
A sample of vitamic C is known to contain 2.58 ×1024 oxygen atoms. How many moles of oxygen atoms are present in the sample?
The graphite refill used is pencil is made of element called ______.
The ______ are combination of atoms of various elements or the same element.
