Per NCERT, which of these is a POSTULATE of Dalton's atomic theory?
AAll atoms of all elements are identical
BAll matter is made up of tiny indivisible particles called ATOMS
CAtoms can be created or destroyed in chemical reactions
DAtoms have multiple shells of negative electrons
Answer & Solution
Correct answer: B. All matter is made up of tiny indivisible particles called ATOMS
Per NCERT §9.3, Dalton: atoms are indivisible building blocks of matter. The other options contradict Dalton's postulates.
Related questions
Per NCERT, what does Dalton's theory say about the COMBINING ratios of atoms in a compoundPer NCERT, what is the relationship between Dalton's atomic theory and Lavoisier's LAW OF Per NCERT, what is a CHEMICAL BOND?Per NCERT, how do atoms achieve a stable electronic configuration?Per NCERT, what is the OCTET RULE for atomic stability?Per NCERT, why does HELIUM exist as single ATOMS rather than as molecules?Per NCERT, what is a MOLECULE — formally defined?Per NCERT, what does Dalton's theory say about chemical reactions at the atomic level?