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प्रश्न
Name the unit in which the radius of an atom is usually expressed.
उत्तर
The radius of an atom is usually expressed in nanometre (nm).
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संबंधित प्रश्न
Define:- Atom
Define:- Molecule
What does an atom consist of ? Explain.
Name the particle or particles you would expect to find in :
The orbit of an atom
Fill in the blank
An _______ is electrically neutral.
Name the three subatomic particles present in an atom.
How is the size of an atom indicated ?
What value has been given to the mass of this reference atom ?
An atom of element E contains 3 protons, 3 electrons and 4 neutrons :
(a) What is its atomic number?
(b) What is its mass number?
(c) Write the electronic configuration of the element E.
(d) State whether element E is a metal or non-metal. Why?
(e) What type of ion, cation or anion, will be formed by an atom of element E? Why
(f) Write the symbol of the ion formed by an atom of element E.
(g) What could element X be?
Which of the following statement is correct about the atom of an element ?
How many atoms are there in exactly 12 g of carbon-12 element ? (C = 12 u)
Give brief information of three subatomic particles with reference to electrical charge, mass and location.
What is the contribution of the following in atomic structure?
Maharshi Kanada
Draw diagrams representing the atomic structures of the following:
- Sodium atom
- Chlorine ion
- Carbon atom
- Oxygen ion
K: Potassium:: C: ______.
Define the following term with an example.
Compound
Define the following term with an example.
Metal
Which of the following statements made by Dalton has not undergone any change?
Dalton’s atomic theory successfully explained
(i) Law of conservation of mass
(ii) Law of constant composition
(iii) Law of radioactivity
(iv) Law of multiple proportions
