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प्रश्न
An element is composed of ______ atoms.
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उत्तर
An element is composed of same kind of atoms.
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संबंधित प्रश्न
Fill in the blank
An ion with negative charge is called _______
Write electronic configuration of oxygen, fluorine, sodium, silicon, argon.
Who originated the word ‘atom’ ?
Write the full form of IUPAC.
How many times is a proton heavier than an electron?
Draw diagrams representing the atomic structures of the following:
- Sodium atom
- Chlorine ion
- Carbon atom
- Oxygen ion
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.
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.
In the nucleus of `""_20"Ca"^40`, there are ______
The number of atoms present in a molecule is called its ______.
