Who Classified Elements based on atomic weight?

Who Classified Elements based on atomic
weight?
by

1 Answer

Answer :

Mendeleev
by

Related questions

Who Classified Elements based on atomic number?

Description : Who Classified Elements based on atomic number?

Last Answer : Moseley

The scientist who classified elements based on Atomic Values is?

Description : The scientist who classified elements based on Atomic Values is?

Last Answer : Lothar Meyer

The person in 1815 who suggested in that elements can be classified on the basis of atomic mass was

Description : The person in 1815 who suggested in that elements can be classified on the basis of atomic mass was

Last Answer : William Prout.

The atomic masses of three elements X, Y and Z having similar chemical properties are 7, 23 and 39 respectively. a) Calculate the average atomic mass of elements X and Z. b) How is the average atomic mass of elements X and Z compare with the atomic mass of element Y? c) Which law of classification of elements is illustrated by this example? d) Give another example of a set of elements which are classified according to this law.

Description : The atomic masses of three elements X, Y and Z having similar chemical properties are 7, 23 and 39 respectively. a) Calculate the average atomic mass of elements X and Z. b) How is the ... this example? d) Give another example of a set of elements which are classified according to this law.

Last Answer : a) The average atomic mass of X and Z = 7 39 2 46 2 23 b) The average atomic mass of X and Z is equal to the atomic mass of Y c) The law illustrated in this example is Dobereiner’s law of triads. d) Another example of Dobereiner’s law is Calcium, Strontium and Barium.

How elements are classified based on electronic configuration?

Description : How elements are classified based on electronic configuration?

Last Answer : Based on electronic configuration, all elements are grouped into four categories. They are ‘s block’, ‘p block’, ‘d block’ and ‘f block’ elements.

Law of octaves says that if the chemical elements are arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of elements

Description : Law of octaves says that if the chemical elements are arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of elements

Last Answer : 7

Who Classified Elements as Triads?

Description : Who Classified Elements as Triads?

Last Answer : Dobereiner

Who Classified Elements as Metals and non-metals?

Description : Who Classified Elements as Metals and non-metals?

Last Answer : Lavoisier

Elements are classified into?

Description : Elements are classified into?

Last Answer : Metals; non-metals and metalloids

The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on

Description : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on

Last Answer : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid- ... . `H_(2)O` D. `CO_(2)`

The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on

Description : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on

Last Answer : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their ... P_(2)O_(5)` D. `FeO, CuO`

The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on

Description : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on

Last Answer : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their ... `Mn_(3)O_(4),N_(2)O_(5)`

The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on

Description : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on

Last Answer : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their ... C. CO,NO D. `Na_(2),CaO`

The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on

Description : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on

Last Answer : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid- ... . `N_(2)O, C_(3)O_(2)`

What are the elements sodium and chlorine classified?

Description : What are the elements sodium and chlorine classified?

Last Answer : Sodium is an alkali metal solid, chlorine is a halogen gas.

Components made up exclusively of discrete elements are classified as what type of electronics?

Description : Components made up exclusively of discrete elements are classified as what type of electronics?

Last Answer : Miniature.

Would you be interested in playing a digital game based on weight loss? If yes what elements would you care about most?

Description : Would you be interested in playing a digital game based on weight loss? If yes what elements would you care about most?

Last Answer : Sure, I’d be interested, but I need more details. How can a game based on weight loss work? Gameshows like “Biggest Loser” work, but I don’t understand how it could be made digital and individual. You mean like WiiFit? Can you give a hypothetical game description?

How are fishes classified based on the composition of endoskeleton? Give example.

Description : How are fishes classified based on the composition of endoskeleton? Give example.

Last Answer : Based on the composition of exoskeleton, fishes are classified into: a) Cartilaginous fishes – containing only cartilage in endoskeleton. Ex: Shark and ray fish b) Bony fishes – endoskeleton composed of bones Ex: Hippocampus, Carp etc.

what are igneous rock classified based upon?

Description : what are igneous rock classified based upon?

Last Answer : Igneous rocks can be classified by their method of formation andby their mineralogy.

How are the animals classified based on body cavity?

Description : How are the animals classified based on body cavity?

Last Answer : How are the animals classified based on body cavity?

What Igneous rocks are classified based upon their mineral compositions and?

Description : What Igneous rocks are classified based upon their mineral compositions and?

Last Answer : Need answer

What Mixture can be classified as a solution suspension or colloid based on?

Description : What Mixture can be classified as a solution suspension or colloid based on?

Last Answer : Colloids are classified frequently as solutions because theparticles have very small dimensions.

How can flanges be classified based on pipe attachment?

Description : How can flanges be classified based on pipe attachment?

Last Answer : Flange joint is one of the methods of pipe joints. Piping and flanges are classified in different ways based on pipe attachment, Pressure-Temperature (PT) rating, facing, face finish. Below ... at the socket. Socket welded flanges shall be specified with connection pipe thickness to ensure pro

When a new organism is discovered, it is classified based on:?

Description : When a new organism is discovered, it is classified based on:?

Last Answer : One of two Kingdoms: Animalia and Plantae.

Which programming languages are classified as low level languages? A) Basic, COBOL, FORTRAN B) Prolog 2, Expert Systems C) Knowledge based Systems D) Assembly Languages

Description : Which programming languages are classified as low level languages? A) Basic, COBOL, FORTRAN B) Prolog 2, Expert Systems C) Knowledge based Systems D) Assembly Languages

Last Answer : Answer : D

Manturian classified the soybean varieties based on

Description : Manturian classified the soybean varieties based on

Last Answer : Ans.Seed colour

How is the inverter circuit classified based on commutation circuitry?

Description : How is the inverter circuit classified based on commutation circuitry?

Last Answer : a. Line commutated inverters. b. Load commutated inverters. c. Self commutated inverters. d. Forced commutated inverters.

Based on physiochemical properties, how are they classified?

Description : Based on physiochemical properties, how are they classified?

Last Answer : Simple proteins, conjugated proteins and derived proteins

A fertiliser plant is classified as a gas based fertiliser plant, when it uses__________ gas as a source of hydrogen for the manufacture of ammonia.(A) Coke oven(B) Producer(C) Natural(D) Coal

Description : A fertiliser plant is classified as a gas based fertiliser plant, when it uses__________ gas as a source of hydrogen for the manufacture of ammonia. (A) Coke oven (B) Producer (C) Natural (D) Coal

Last Answer : (C) Natural

How are resources classified based on the status of development?

Description : How are resources classified based on the status of development?

Last Answer : a) Potential resources: Resources, which are found in a region, but have not been utilized, are potential resources. These resources will be widely used shortly. Wind and solar energy potential in ... but their use has not yet been started. These can be used to meet our future requirements.

Persons below the poverty line in India are classified as such based on whether (a) They are entitled to a minimum prescribed food basket (b) They get work for a prescribed minimum number of days in a year (c) They belong to agricultural labourer household and the scheduled caste /tribe social group (d) Their daily wages fall below the prescribed minimum wages

Description : Persons below the poverty line in India are classified as such based on whether (a) They are entitled to a minimum prescribed food basket (b) They get work for a prescribed minimum number of ... the scheduled caste /tribe social group (d) Their daily wages fall below the prescribed minimum wages

Last Answer : Ans: ( a ) They are entitled to a minimum prescribed food basket

L. A. Gear's sports shoe line would have been classified as a problem child when it was introduced. Based on this classification, which of the following would have been true according to the product -portfolio matrix? A)High profitability B)High market growth rate C)High market share D)Positive cash flow E)Relatively high sales volume

Description : L. A. Gear's sports shoe line would have been classified as a problem child when it was introduced. Based on this classification, which of the following would have been true according to the ... B)High market growth rate C)High market share D)Positive cash flow E)Relatively high sales volume

Last Answer : B)High market growth rate

How chemical industry classified based on application.

Description : How chemical industry classified based on application. 

Last Answer : Types of chemical industries on the basis of application: On the basis of application, Chemical industries are classified as 1. Industries manufacturing Basic chemicals 2. Industries manufacturing Fine chemicals 3. Industries manufacturing Specialty chemicals

White Box techniques are also classified as a) Design based testing b) Structural testing c) Error guessing technique d) None of the mentioned

Description : White Box techniques are also classified as a) Design based testing b) Structural testing c) Error guessing technique d) None of the mentioned

Last Answer : Ans : b

Field-work based research is classified as: (A) Empirical (B) Historical (C) Experimental (D) Biographical

Description : Field-work based research is classified as: (A) Empirical (B) Historical (C) Experimental (D) Biographical

Last Answer : (C) Experimental

1The elements of the second period of the Periodic Table are given below: Li Be B C N O F (a) Give reason to explain why atomic radii decrease from Li to F. (b) Identify the most (i) metallic and (ii)non-metallic element. -Science

Description : 1The elements of the second period of the Periodic Table are given below: Li Be B C N O F (a) Give reason to explain why atomic radii decrease from Li to F. (b) Identify the most (i) metallic and (ii)non-metallic element. -Science

Last Answer : a) It is because nuclear charge increases due to increase in atomic number, therefore, force of attraction between nucleus and valence electrons increases, i.e. effective nuclear charge increases, hence ... element is ‘F’ because it can gain electrons easily due to smallest atomic size.

There are two elements calcium (atomic number 20) and argon (atomic number 18) The mass number of both the elements is 40. They are therefore known as (a) isotones (b) isochores (c) isobars (d) isotopes

Description : There are two elements calcium (atomic number 20) and argon (atomic number 18) The mass number of both the elements is 40. They are therefore known as (a) isotones (b) isochores (c) isobars (d) isotopes

Last Answer : Ans:(c)

In which of the following groups, are the elements written in the descending order of their respective atomic weights? (a) Nitrogen, carbon, oxygen, hydrogen (b) Oxygen, argon, nitrogen, hydrogen (c) Oxygen, nitrogen, helium, hydrogen (d) Oxygen, nitrogen, helium, bromine

Description : In which of the following groups, are the elements written in the descending order of their respective atomic weights? (a) Nitrogen, carbon, oxygen, hydrogen (b) Oxygen, argon, nitrogen, hydrogen (c) Oxygen, nitrogen, helium, hydrogen (d) Oxygen, nitrogen, helium, bromine

Last Answer : Ans:(c)

The names of the scientists, Newlands, Mendeleev and Meyer are associated with the development of (a) Atomic structure (b) Metallurgy (c) Periodic table of elements (d) Discovery of elements

Description : The names of the scientists, Newlands, Mendeleev and Meyer are associated with the development of (a) Atomic structure (b) Metallurgy (c) Periodic table of elements (d) Discovery of elements

Last Answer : Ans:(c)

Which group contains the elements with largest atomic size?

Description : Which group contains the elements with largest atomic size?

Last Answer : First group

Elements with atomic number 89-103 are known as?

Description : Elements with atomic number 89-103 are known as?

Last Answer : Actinides (radio active rare earths)

Elements with atomic number 57-71 are known as?

Description : Elements with atomic number 57-71 are known as?

Last Answer : Lanthanides (rare earths)

Elements having same mass number and different atomic number are known as?

Description : Elements having same mass number and different atomic number are known as?

Last Answer : Isobars Eg: calcium — 40; Argon - 40

The Russian chemist who said that the properties of elements are periodic function of their atomic mass is

Description : The Russian chemist who said that the properties of elements are periodic function of their atomic mass is

Last Answer : Dmitri Mendeleev.

Arrange the following elements in increasing order of their atomic size.

Description : Arrange the following elements in increasing order of their atomic size.

Last Answer : a) Li, Be, F, N a) F

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.

Atomic mass is not useful to construct the periodic table. Give reasons with an example. OR Why is atomic number is more useful than atomic mass to classify the elements?

Description : Atomic mass is not useful to construct the periodic table. Give reasons with an example. OR Why is atomic number is more useful than atomic mass to classify the elements?

Last Answer : Isotopes of an element have same atomic number but different atomic mass. They have to be placed in four places. This creates confusion because other elements occupied these positions.

Do we have (or will have soon) a periodic table of sub-atomic elements?

Description : Do we have (or will have soon) a periodic table of sub-atomic elements?

Last Answer : http://www.bing.com/images/search?q=subatomic+elements+chart&qpvt=sub+atomic+elements+chart&qpvt=sub+atomic+elements+chart&FORM=IGRE ?

The cause of fractional atomic weights of elements? -Do You Know?

Description : The cause of fractional atomic weights of elements? -Do You Know?

Last Answer : Atomic masses of most of the elements in atomic mass units involve fractions because atomic mass of an element is the average of relative masses of its various isotopes. While taking average, the result appears as a fraction.

A radioactive element A on disintegration gives two elements B and C. If B is helium and C is the element of atomic number 90 and atomic mass 234, the

Description : A radioactive element A on disintegration gives two elements B and C. If B is helium and C is the element of atomic number 90 and atomic mass 234, the

Last Answer : A radioactive element A on disintegration gives two elements B and C. If B is helium and C is the element of atomic ... )^(234)Th` D. `._(91)^(234)Pa`