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प्रश्न
A radical take part – unsplit in a chemical reaction and retains its identity in reactions.
With reference to the radical –
- ammonium
- bisulphate
- carbonate
state the group of atoms present in each radical.
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उत्तर
| Radical | Representattion | Group of atoms present in a radical |
| a. Ammonium | NH4+ | 1 atom of nitrogen; 4 atom of hydrogen |
| b. Bisulphate | HSO41− | 1 atom of hydrogen and sulphur; 4 atoms of oxygen |
| c. Carbonate | CO3− − | 1 atom of carbon; 5 atoms of oxygen |
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संबंधित प्रश्न
Define:- Molecule
Write the names of `("NH"_4)_2"SO"_4` compounds:
Write the names of `"Ca"("NO"_3)_2` compounds :
Define: Mass number
Define: Relative atomic mass
Name the particles which revolve around the nucleus.
State Dalton’s atomic theory.
What is the usual symbol for (a) and electron (b) a proton, and (c) a neutron?
What are the building blocks of matter ?
Name the unit in which the radius of an atom is usually expressed.
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.
The smallest particle of matter that can exist by itself is ______.
Define the following term with an example.
Element
The basic unit of matter is ______.
State true or false. If false, correct the statement.
An atom is electrically neutral.
Define – Atom.
Name the sub-atomic particles.
In the nucleus of `""_20"Ca"^40`, there are ______
Give the salient features of “Modern atomic theory”.
The most abundant type of atom is the universe is ______.
