What are the main postulates of Modern Atomic Theory.

What are the main postulates of Modern Atomic Theory.
by

1 Answer

Answer :

Ans : Modern Atomic Theory :
(1) Composition :
According to modern atomic theory , atom is a complex organization composed of even smaller particles called sub atomic particles e.g. electrons , protons & neutrons.
(2) Identicalness :
Dalton’s view that all atoms of an element have the same mass is modified in the light of discovery of isotopes.
(3) Ratio of atoms :
According to modern theory the ratio between atoms of various elements in many organic compounds is not simple.
by

Related questions

What are the main postulates of Dalton’s Atomic Theory

Description : What are the main postulates of Dalton’s Atomic Theory

Last Answer : Ans : Dalton Atomic Theory : (1) Composition : All elements are made up of small indivisible & indestructible particles called atoms. (2) Identicalness : All atoms of a given element ... atoms themselves are not changed this means that atoms are neither created nor destroyed in chemical reactions.

Give the postulates of modern cell theory.

Description : Give the postulates of modern cell theory.

Last Answer : Give the postulates of modern cell theory.

Bohar atomic theory postulates

Description : Bohar atomic theory postulates

Last Answer : Bohar atomic theory postulates.

What is kinetic theory of matter? Write down its postulates?

Description : What is kinetic theory of matter? Write down its postulates?

Last Answer : The kinetic theory explains the properties of different states of matter especially that of gases. Its main points are as following: 1- Matter is made up of atoms, molecules or ions. ... is very small. 4- Material particles generally have translational, rotational and vibrational type of movements.

Michael was having dinner with his family on the occasion of *********. When it was the time for 0 studied concepts. dessert, Michael became curious. When he saw that the dessert was plum pudding, he became happy because he had learned about a similar term in his chemistry class on that day. 13.1 Correlate the plum pudding with hat Michael studied in his chemistry class. 1 13.2 Why did the name "plum pudding" originate? 1 1 13.3 Give the postulates of the model discussed here. 1 13.4 Give one drawback of the atomic model .​ -Science

Description : Michael was having dinner with his family on the occasion of Christmas. When it was the time for 0 studied concepts. dessert, Michael became curious. When he saw that the dessert was plum pudding, he ... of the model discussed here. 1 13.4 Give one drawback of the atomic model . -Science

Last Answer : 13.1 Correlation of the plum pudding with what Michael studied in his chemistry class is as follows:- In chemistry class, Michael studied the model of atom proposed by J.J. Thomson- "plum pudding ... of the atom as how a positive charge sphere can hold negatively charged electrons in an atom.

State two postulates of Bohr’s atomic model.

Description : State two postulates of Bohr’s atomic model.

Last Answer : 1. An atom consists of a dense positively charged central part called as Nucleus.  2. The electrons revolve around the nucleus in fixed circular paths are called orbit or shell. The electrostatic force of attraction ... of an electron (mvr) must be an integral multiple of h/2π. Hence mvr = nh/2π.

Write Postulates of kinetic theory of gases.

Description : Write Postulates of kinetic theory of gases.

Last Answer : Write Postulates of kinetic theory of gases.

What postulates of the kinetic molecular theory?

Description : What postulates of the kinetic molecular theory?

Last Answer : A gas is formed from extremely small particles in a permanent and randomless motion.

Certain fundamental beliefs called "postulates" underlie auditing theory. Which of the following is not a postulate of auditing? a. Economic assertions can be verified. b. The auditor acts exclusively as an auditor. c. An audit has a benefit only to the owners. d. No long-term conflict exists between the auditor and the management of the entity under audit

Description : Certain fundamental beliefs called "postulates" underlie auditing theory. Which of the following is not a postulate of auditing? a. Economic assertions can be verified. b. The auditor acts exclusively ... long-term conflict exists between the auditor and the management of the entity under audit

Last Answer : An audit has a benefit only to the owners

Postulates of Arrhenius theory of ionization.

Description : Postulates of Arrhenius theory of ionization. 

Last Answer : 1. The molecules of an electrolyte when dissolved in water split up into two kinds of charged particles, positively charged particle known as cation, negatively charged particle known as anion.  2. ... anions corresponds to the valency of the element or radical from which the ion is derived. 

The modern atomic theory was conceived by : w) Victor Grignard x) Daniel Rutherford y) Svante Arrhenius z) John Dalton

Description : The modern atomic theory was conceived by : w) Victor Grignard x) Daniel Rutherford y) Svante Arrhenius z) John Dalton

Last Answer : ANSWER: Z -- JOHN DALTON

In the modern quantum-based atomic theory what is the name given to a particular space around the nucleus in which an electron moves?

Description : In the modern quantum-based atomic theory what is the name given to a particular space around the nucleus in which an electron moves?

Last Answer : The name given to a particular space around the nucleus in whichan electron moves is Orbital

In the modern quantum-based atomic theory what is the name given to a particular space around the nucleus in which an electron moves?

Description : In the modern quantum-based atomic theory what is the name given to a particular space around the nucleus in which an electron moves?

Last Answer : The name given to a particular space around the nucleus in whichan electron moves is Orbital

What are the postulates of Bohr’s model of an atom? -Science

Description : What are the postulates of Bohr’s model of an atom? -Science

Last Answer : Postulates of Bohr's model of an atom are Only certain special orbits known as discrete orbits of electrons are allowed inside the atom. While revolving in discrete orbits the electrons do not radiate energy. These orbits or ... represented by the letters K, L, M, N, or the numbers, n=1,2,3,4, .

Consider two postulates given below: -Maths 9th

Description : Consider two postulates given below: -Maths 9th

Last Answer : THESE ARE POSTULATES.NO THEY DONOT CONTAIN ANY UNDEFINED TERMS. THESE POSTULATES ARE CONSISTENT I THINK IT WILL HELP

What is the difference between axioms and postulates and theorems? -Maths 9th

Description : What is the difference between axioms and postulates and theorems? -Maths 9th

Last Answer : This answer was deleted by our moderators...

The Michaehis-Menten hypothesis: (A) Postulates the formation of an enzyme substrate complex (B) Enables us to calculate the isoelectric point of an enzyme (C) States that the rate of a chemical reaction may be independent of substrate concentration (D) States that the reaction rate is proportional to substrate concentration

Description : The Michaehis-Menten hypothesis: (A) Postulates the formation of an enzyme substrate complex (B) Enables us to calculate the isoelectric point of an enzyme (C) States that the ... independent of substrate concentration (D) States that the reaction rate is proportional to substrate concentration

Last Answer : Answer : A

Rivers' postulates can be used toa. locate an oncogene in a cell that is cancerous. b. develop inactivated viruses for use in a vaccine. c. eliminate viruses with certain chemical agents. d. relate a particular virus to a particular disease.

Description : Rivers' postulates can be used to a. locate an oncogene in a cell that is cancerous. b. develop inactivated viruses for use in a vaccine. c. eliminate viruses with certain chemical agents. d. relate a particular virus to a particular disease.

Last Answer : d. relate a particular virus to a particular disease.

Brunauer, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates is not used to derive BET equation? (A) Langmuir's assumption applies to every adsorbed layer (B) There is no dynamic equilibrium between successive layer (C) The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process (D) None of these

Description : Brunauer, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates ... (except the first one) is involved in each of the evaporation process (D) None of these

Last Answer : (B) There is no dynamic equilibrium between successive layer

Koch's postulates were satisfied for the first time with A.Clostridiumtetani B.Corynebacteriumdiphtheriae C.Bacillusanthracis D.Salmonellatyphi

Description : Koch's postulates were satisfied for the first time with A.Clostridiumtetani B.Corynebacteriumdiphtheriae C.Bacillusanthracis D.Salmonellatyphi

Last Answer : C.Bacillusanthracis

Koch's postulates were satisfied for the first time with A.Clostridiumtetani B.Corynebacteriumdiphtheriae C.Bacillusanthracis D.Salmonellatyphi

Description : Koch's postulates were satisfied for the first time with A.Clostridiumtetani B.Corynebacteriumdiphtheriae C.Bacillusanthracis D.Salmonellatyphi

Last Answer : Bacillusanthracis

Which one of the following is not a part of Koch‘s postulates? a. The microorganism must be isolated from a dead animal and pure cultured b. The microorganism and disease can be identified from a mixed culture c. The pure cultured organism is inoculated into a healthy susceptible animal. d. The same microorganism must be present in every case of the disease.

Description : Which one of the following is not a part of Koch s postulates? a. The microorganism must be isolated from a dead animal and pure cultured b. The microorganism and disease can be identified from ... a healthy susceptible animal. d. The same microorganism must be present in every case of the disease.

Last Answer : d. The same microorganism must be present in every case of the disease.

What was one main point if daltons atomic theory?

Description : What was one main point if daltons atomic theory?

Last Answer : ttha atoms made up pthe smallest forms of matter

What was one main point if daltons atomic theory?

Description : What was one main point if daltons atomic theory?

Last Answer : ttha atoms made up pthe smallest forms of matter

What is modern theory about the existence of the ionic compounds in solid state?

Description : What is modern theory about the existence of the ionic compounds in solid state?

Last Answer : Ans: According to modern theory these exist in form of ions even in solid state for example, sodium chloride exist as Na+ Cl- . Whereas according to the ionic theory it exists as NaCl.

What are the observations of Dalton's atomic theory ? -Chemistry

Description : What are the observations of Dalton's atomic theory ? -Chemistry

Last Answer : 1. Atoms are very small 2. Atoms can neither be created nor be destroyed in a chemical reaction. 3. Atoms of the same elements show similar properties 4. Atoms of different elements show different properties 5. Atoms are always combined in definite proportion by mass in a chemical reaction.

What are the limitations of Dalton's atomic theory? -Chemistry

Description : What are the limitations of Dalton's atomic theory? -Chemistry

Last Answer : Hypothesis of Dalton's atomic theory → The matter is made up of indivisible particles known as atoms. The properties of all the atoms of a given element are the same including mass. ... element that takes part in reactions (atoms) and an ultimate particle that has independent existence (molecule)

Who proposed first atomic theory? (1) E.Rutherford (2) De Broglie (3) John Dalton (4) D.I.Mendeleef

Description : Who proposed first atomic theory? (1) E.Rutherford (2) De Broglie (3) John Dalton (4) D.I.Mendeleef

Last Answer : (3) John Dalton Explanation: Democritus first suggested the existence of the atom but it took almost two millennia before the atom was placed on a solid foothold as a fundamental chemical object by John Dalton (1766-1844).

Who proposed first atomic theory? (1) E. Rutherford (2) De Broglie (3) John Dalton (4) D. I. Mendeleev

Description : Who proposed first atomic theory? (1) E. Rutherford (2) De Broglie (3) John Dalton (4) D. I. Mendeleev

Last Answer : (3) John Dalton Explanation: Democritus first suggested the existence of the atom but it took almost two millennia before the atom was placed on a solid foothold as a fundamental chemical object by John Dalton (1766-1844).

Which of the following Greek philosophers proposed the first atomic theory around 400 B.C.? Was it w) Plato x) Archimedes y) Aristotle z) Democritus

Description : Which of the following Greek philosophers proposed the first atomic theory around 400 B.C.? Was it w) Plato x) Archimedes y) Aristotle z) Democritus

Last Answer : ANSWER: D -- DEMOCRITUS

‘Atomic theory’ of matter was given by (1) Avogadro (2) Dalton (3) Newton (4) Pascal

Description : ‘Atomic theory’ of matter was given by (1) Avogadro (2) Dalton (3) Newton (4) Pascal

Last Answer : Dalton

The modern atomic mass scale is based on :-

Description : The modern atomic mass scale is based on :-

Last Answer : The modern atomic mass scale is based on :- A. `C^(12)` B. `o^(16)` C. `H^(1)` D. `C^(13)`

What is the modern standard for rela- tive atomic mass?

Description : What is the modern standard for rela- tive atomic mass?

Last Answer : Carbon isotope with mass number 12

What is the significance of atomic number in the modern classification of elements?

Description : What is the significance of atomic number in the modern classification of elements?

Last Answer : In the modern classification, elements are arranged in the increasing order of their atomic numbers.

What is the main basis of modern periodic table ?

Description : What is the main basis of modern periodic table ?

Last Answer : The true basis of the modern periodic table is the electron configuration.

Explain the modern theory associated with evolution of the earth. -Geography

Description : Explain the modern theory associated with evolution of the earth. -Geography

Last Answer : In modern theory the evolution of the earth is associated with Big Bang Theory. It was put forth by Edwin Hubble in 1920. In the beginning, all matter forming the universe ... becoming available about the expanding universe, scientific community at present favours argument of expanding universe.

What does the modern dual processing theory say about the mind?

Description : What does the modern dual processing theory say about the mind?

Last Answer : What is the answer ?

According to Modern Theory of Rent, rent accrues to - (1) capital only (2) any factor (3) labour only (4) land only

Description : According to Modern Theory of Rent, rent accrues to - (1) capital only (2) any factor (3) labour only (4) land only

Last Answer : (2) any factor Explanation: Modern theory of rent does not confine itself to the reward of only land as a factor of production as was the case in the classical Ricardian theory of rent. Rent in ... can arise in respect of any other factor of production. i.e., labour, capital and entrepreneurship.

Which of the following theories of origin of petroleum does not explain the presence of nitrogen & sulphur compounds in crude oil? (A) Modern theory (B) Carbide theory (C) Engler theory (D) All (A), (B) and (C

Description : Which of the following theories of origin of petroleum does not explain the presence of nitrogen & sulphur compounds in crude oil? (A) Modern theory (B) Carbide theory (C) Engler theory (D) All (A), (B) and (C

Last Answer : (B) Carbide theory

Modern theory of international trade is based on the view of A. Adam Smith B. Ricardo C. Hecksher and Ohlin D. Hicks

Description : Modern theory of international trade is based on the view of A. Adam Smith B. Ricardo C. Hecksher and Ohlin D. Hicks

Last Answer : Hecksher and Ohlin

Modern portfolio theory …….. the relationship between risk and return a. maximizes b. minimizes c. quantifies d. does not assume

Description : Modern portfolio theory …….. the relationship between risk and return a. maximizes b. minimizes c. quantifies d. does not assume 

Last Answer : Answer: c

Which theory believes that the investors prefer larger to smaller returns from securities ? a. modern b. traditional c. Markowitz d. sharpe

Description : Which theory believes that the investors prefer larger to smaller returns from securities ? a. modern b. traditional c. Markowitz d. sharpe 

Last Answer : Answer: a

According to Modern Theory of Rent, rent accrues to (1) capital only (2) any factor (3) labour only (4) land only

Description : According to Modern Theory of Rent, rent accrues to (1) capital only (2) any factor (3) labour only (4) land only

Last Answer : any factor

According to Dalton’s atomic theory, which is the smallest particle which can exist independently? -Do You Know?

Description : According to Dalton’s atomic theory, which is the smallest particle which can exist independently? -Do You Know?

Last Answer : According to Dalton's atomic theory, the smallest particle which can exist independently is ATOM

Who gave the atomic theory ?

Description : Who gave the atomic theory ?

Last Answer : Scientist Dalton gave the atomic theory.

Who is the proponent of atomic nuclear theory ?

Description : Who is the proponent of atomic nuclear theory ?

Last Answer : Radar Ford, proponent of atomic nuclear theory.

Who Discovered the Atomic Fracture Theory ?

Description : Who Discovered the Atomic Fracture Theory ?

Last Answer : Scientist Rutherford discovered it

Who Provides the Atomic Nuclear Theory ?

Last Answer : Ernest Rutherford provided the atomic nuclear theory.

How does the Rutherford gold foil experiment correctly advance atomic theory away from the plum pudding model.?

Description : How does the Rutherford gold foil experiment correctly advance atomic theory away from the plum pudding model.?

Last Answer : Need answer

What is the Contribution of anaxagoras in atomic theory?

Description : What is the Contribution of anaxagoras in atomic theory?

Last Answer : The Greek philosopher Anaxagoras (ca. 500-ca. 428 B.C.) was the first to formulate a molecular theory of matter and to regard the physical universe as subject to the rule of rationality or reason. ... on the Ionian coast of Asia Minor in the town of Clazomenae, near Smyrna (now Izmir, Turkey).