Advertisements
Advertisements
प्रश्न
Draw the structure of an atom and explain the position of the sub-atomic particles.
Advertisements
उत्तर
Structure of an atom.

Position of the subatomic – particles.
Atom consist of three sub-atomic.
Particles: 1. Protons, 2. Electrons, 3. Neutrons
- The nucleus of the atom contains the protons (positively charged) and the neutrons (no change)
- The outermost regions of the atom are called electron shells and contain the electrons (negatively charged)
- The protons have a positive charge while neutrons have a neutral charge.
- Electrons circle around the nucleus of an atom, they are negatively charged.
APPEARS IN
संबंधित प्रश्न
Tick the most appropriate answer.
Who discovered that radioactive rays are given out by uranium?
- Henri Becquerel
- Marie Curie
- Pierre Curie
- Schmidt
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 |
Write the names of `("NH"_4)_2"SO"_4` compounds:
Write the names of `"Ca"("NO"_3)_2` compounds :
Define: Relative atomic mass
What are orbits or shells ?
Give two examples for each of ionic and covalent bond.
Name the particle or particles you would expect to find in :
The orbit of an atom
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is such a particle called ?
State two observations which show that atom is not indivisible.
How many atoms are there in exactly 12 g of carbon-12 element ? (C = 12 u)
What is the contribution of the following in atomic structure?
Maharshi Kanada
In what respects do the three isotopes of hydrogen differ? Give their structures.
Name the sub-atomic particles.
Define the following term with an example.
Compound
______ is the smallest particle of an element.
Define the term ions or radicals.
The graphite refill used is pencil is made of element called ______.
