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प्रश्न
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is such a particle called ?
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उत्तर
What is such a particle called= anion
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संबंधित प्रश्न
TRUE \ FALSE
Elements combine in definite proportions to form compounds.
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State Dalton’s atomic theory.
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Fill in the blank
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Match the pairs.
| Group 'A' | Group 'B' |
| a. Proton | i. Negatively charged |
| b. Electron | ii. Neutral |
| c. Neutron | iii. Positively charged |
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- Sodium atom
- Chlorine ion
- Carbon atom
- Oxygen ion
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Which element will gain electron?
Draw the basic structure of an atom representing its –
- Subatomic particles
- Nucleus
- Orbits or shells.
State true or false. If false, correct the statement.
An atom is electrically neutral.
Define the following term with an example.
Metal
The number of atoms present in a molecule is called its ______.
The most abundant type of atom is the universe is ______.
