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प्रश्न
Define:- Radicals
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उत्तर
Radicals : A radical is an atom of an element or a group of atoms of different elements that behaves as a single unit with a positive or negative charge on it.
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संबंधित प्रश्न
Write the names of the elements present in the:-
Glucose
Define: Mass number
Name the particle or particles you would expect to find in :
The orbit of an atom
An atom has 13 protons and 14 neutrons.
What is the atomic number of the atom ?
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is the charge on the particle ?
Write the full form of IUPAC.
How many times is a proton heavier than an electron?
What is an atom ? How do atoms usually exist ?
An atom of an element X may be written as `""_9^4"X"`
(a) What does the figure 9 indicate?
(b) What does the figure 4 indicate?
(c) What is the number of protons in atom X?
(d) What is the number of neutrons in atom X?
(e) What is the number of electrons in atom X?
(f) How many electrons are there in the outermost shell of an atom of element X?
(g) Write the symbol of ion formed by an atom of element X.
Find the mass of 2 moles of nitrogen atoms.
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)
Define the following term:
Atom
The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of phosphorus
State true or false. If false, correct the statement.
The basic unit of an element is molecule.
Name the sub-atomic particles.
Draw the structure of an atom and explain the position of the sub-atomic particles.
Atoms of different elements having the same number of ______ are called isotones.
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 ______.
