Tag: history of atomic model

Questions Related to history of atomic model

Dalton said that elements are distinguished from each other by :

chemistry atoms, molecules and radicals history of atomic model atomic theory of dalton daltons atomic theory

the charge on their ions
the density of their solid forms
the weights of their atoms
the shapes of their atoms

Who was the first scientist which proposed that "Matter is made up of indivisible particles called atoms"?

chemistry atoms, molecules and radicals history of atomic model atomic theory of dalton daltons atomic theory

Lavoiser
Dalton
Thomson
Faraday

Atoms of different elements combine in :

chemistry atoms, molecules and radicals history of atomic model atomic theory of dalton daltons atomic theory

unequal ratios.
prime number ratios.
equal ratios.
whole number ratios.

Dalton's atomic theory was not accepted fully :

chemistry atoms, molecules and radicals history of atomic model atomic theory of dalton daltons atomic theory

when atoms combine It must be presumed to be a binary one, unless some cause appear to the contrary.
when elements react, their atoms sometimes combine in more than one simple, whole-number ratio.
elements are characterized by the mass of their atoms.
None of the above

Which of the following is a merit of Dalton's atomic theory?

chemistry atoms, molecules and radicals history of atomic model atomic theory of dalton daltons atomic theory

Laws of chemical combination
Distinction between the fundamental particle of an element (atom) and that of a compound (molecule)
Both A and B
None of the above

Among the following, which one can not be further broken down by chemical means?

chemistry atoms, molecules and radicals history of atomic model atomic theory of dalton daltons atomic theory

Cation
Inert Gas
Crystal
Anion
Element

Which one proposes the basic postulates concerning elements and atoms?

chemistry atoms, molecules and radicals history of atomic model atomic theory of dalton daltons atomic theory

Avogadro's number
$P _1V _1=P _2V _2$
$V _1T _2=V _2T _1$
Dalton's theory
Gay-Lussac's Law

Which of the following is not part of the Atomic Theory?

chemistry atoms, molecules and radicals history of atomic model atomic theory of dalton daltons atomic theory

Compounds are made up of combinations of atoms
All atoms of a given element are alike
All matter is composed of atoms
A chemical reaction involves the rearrangement of atoms
The atom is mainly empty space

An important postulate of Dalton's atomic theory is:

chemistry atoms, molecules and radicals history of atomic model atomic theory of dalton daltons atomic theory

an atom contains electrons, protons and neutrons
atom can neither be created nor destroyed nor divisible
all the atoms of an element are not identical
all the elements are available in nature in the form of atoms

The nucleus of the atom $\left( Z>1 \right) $ consists of:

chemistry inside the atom history of atomic model atomic theory of dalton daltons atomic theory

Proton and neutron.
Proton and electron.
Neutron and electron.
Proton, neutron and electrons