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प्रश्न
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.
उत्तर
Do it yourself.
APPEARS IN
संबंधित प्रश्न
TRUE \ FALSE
Neils Bohr gave the theory to explain the arrangement of protons in an atom.
WRITE SHORT ANSWER
Define an ionic compound.
ANSWER IN DETAIL
State the postulates of the Dalton’s atomic theory.
Define: Relative atomic mass
An atom has 13 protons and 14 neutrons.
What is the atomic number of the atom ?
Define: An Atom:
Fill in the blank
If an atom loses an electron, it acquires ______ a charge.
Fill in the blank
An excess of electrons produces a ________ charge.
Why is it not possible to see an atom even with the most powerful microscope ?
Which of the following statement is correct about the atom of an element ?
Define the following term:
Atom
What is the contribution of the following in atomic structure?
Maharshi Kanada
Compare:
Chlorine atom and chloride ion, with respect to
Atomic structure
Electrical state
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.
The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of phosphorus
The basic unit of matter is ______.
An atom of an element has no electron. Will that atom have any mass or not? Can an atom exist without electron? If so then give example.
______ is the smallest particle of an element.
In the nucleus of `""_20"Ca"^40`, there are ______
Atoms of one element can be transmuted into atoms of other elements by ______
The number of atoms present in a molecule is called its ______.
1 mole of Gold and Silver contain same number of atoms.
Which of the following has maximum number of atoms?
Does the solubility of a substance change with temperature? Explain with the help of an example.
The graphite refill used is pencil is made of element called ______.
The smallest unit of an element is ______.
Lead is also known as plumbum.
Atoms have a radius of the order ______.
