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प्रश्न
Name the particle or particles you would expect to find in :
The nucleus of an atom
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उत्तर
The nucleus of an atom : protons and neutrons
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संबंधित प्रश्न
Define:- Molecule
Define: Ions
Define: Relative atomic mass
Name the particles which revolve around the nucleus.
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is the mass number of X?
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is the charge on the particle ?
State two observations which show that atom is not indivisible.
Find the mass of 2 moles of nitrogen atoms.
Calculate the number of moles in 12.044 × 1025 atoms of phosphorus.
Match the pairs.
| Group 'A' | Group 'B' |
| a. Proton | i. Negatively charged |
| b. Electron | ii. Neutral |
| c. Neutron | iii. Positively charged |
In what respects do the three isotopes of hydrogen differ? Give their structures.
Name the gas that.
Turns moist starch iodide paper blue black.
State the meaning of the term – (a) atom, (b) molecule, (c) radical – with a suitable example.
Select the correct answer to the statement given below:
The smallest particle of a substance – capable of independent existence and which retains the characteristics of the substance.
Assertion: An atom is electrically neutral.
Reason: Atoms have equal number of protons and electrons.
Atoms of different elements having ______ mass numbers, but ______ atomic numbers are called isobars.
1 mole of Gold and Silver contain same number of atoms.
Lead is also known as plumbum.
