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प्रश्न
The basic unit of matter is ______.
पर्याय
element
atom
molecule
electron
उत्तर
The basic unit of matter is atom.
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संबंधित प्रश्न
WRITE SHORT ANSWER
Define an ionic compound.
Define:- Radicals
Write the names of the elements present in the:-
Glucose
Fill in the blank
An ion with negative charge is called _______
What does an atom consist of ? Explain.
Name the particles which revolve around the nucleus.
Define: An Atom:
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is such a particle called ?
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is the mass number of X ?
Fill in the blank
If an atom loses an electron, it acquires ______ a charge.
Fill in the blank
A charged particle is called an _____
Fill in the blank
An _______ is electrically neutral.
What value has been given to the mass of this reference atom ?
State two observations which show that atom is not indivisible.
One nm is equal to :
Which of the following statement is correct about the atom of an element ?
Give scientific reason.
All the mass of an atom is concentrated in the nucleus.
What is the contribution of the following in atomic structure?
Maharshi Kanada
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which element will lose electron?
Define the following term with an example.
Element
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.
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.
Define the term ions or radicals.
The volume occupied by 4.4 g of CO2 at S.T.P ______
Atoms of different elements having the same number of ______ are called isotones.
Atoms of one element can be transmuted into atoms of other elements by ______
Write any two observations which support the fact that atoms are divisible.
What are the 3 most abundant atoms on the earth?
