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प्रश्न
Name the three subatomic particles present in an atom.
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उत्तर
The three subatomic particles present in an atom are: electron, proton and neutron.
APPEARS IN
संबंधित प्रश्न
MATCH THE COLUMNAS
| 1. Jpham Dalton | a. Neutrons |
| 2. Atom | b. Model of the atom |
| 3. Chadwick | c.The atomic theory of matter |
| 4. Rutherfrod | d. Positively charged |
| 5. Protons | e. Electricity neutral |
| 6. Nuclear fusion | f. Generator of electricity |
| 7.Gamma -rays | g. High penetrating power |
| h.Energy in sun |
ANSWER IN DETAIL
State the postulates of the Dalton’s atomic theory.
Write the names of the elements present in the:-
Glucose
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What does an atom consist of ? Explain.
Who originated the word ‘atom’ ?
What is the usual symbol for (a) and electron (b) a proton, and (c) a neutron?
Write the relation between nanometre and metre.
Electron, proton, neutron are the types of ______ in an atom.
What is the contribution of the following in atomic structure?
Maharshi Kanada
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form negative ion?
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
What will be the charge present of the molecule XY after chemical combination?
Select the correct answer to the statement given below:
The basic unit of matter is not capable of independent existence.
The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of aluminium
Project.
To have an idea of what atoms are, students can be asked to construct atoms using pipe cleaners (thin metal wires-electron shells), pompoms (balls-different colours for protons and neutrons) and beads (electrons). Students will love and enjoy putting them together and they look great hanging from the ceiling in the classroom.
Define the term ions or radicals.
The graphite refill used is pencil is made of element called ______.
What are the 3 most abundant atoms on the earth?
