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प्रश्न
What are the building blocks of matter ?
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उत्तर
Atoms and molecules are the building blocks of matter.
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संबंधित प्रश्न
If bromine atom is available in the form of, say, two isotopes `""_35^79Br (49.7%)" and """_35^81Br (50.3%)`, calculate the average atomic mass of bromine atom.
TRUE \ FALSE
Neils Bohr gave the theory to explain the arrangement of protons in an atom.
ANSWER IN DETAIL
How are isobars different from isotopes ?
Define:- Radicals
Write the names of the elements present in the:-
Glucose
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An ion with negative charge is called _______
What are orbits or shells ?
Who originated the word ‘atom’ ?
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What is the atomic number of the atom ?
Why is it not possible to see an atom even with the most powerful microscope ?
How many times is a proton heavier than an electron?
Dalton's atomic theory says that atoms are indivisible. Is this statement still valid ? Give reasons for your answer.
State two observations which show that atom is not indivisible.
Find the mass of 2 moles of nitrogen atoms.
How many atoms are there in exactly 12 g of carbon-12 element ? (C = 12 u)
A compound containing one atom of carbon and two atoms of oxygen is ______.
The basic unit of matter is ______.
Dalton’s atomic theory successfully explained
(i) Law of conservation of mass
(ii) Law of constant composition
(iii) Law of radioactivity
(iv) Law of multiple proportions
The smallest unit of an element is ______.
The most abundant type of atom is the universe is ______.
