Who Classified Elements based on atomic number?

Who Classified Elements based on atomic
number?
by

1 Answer

Answer :

Moseley
by

Related questions

Who Classified Elements based on atomic weight?

Description : Who Classified Elements based on atomic weight?

Last Answer : Mendeleev

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.

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.

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

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)

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

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.

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`

Which of the atomic number represent the s-block elements ?

Description : Which of the atomic number represent the s-block elements ?

Last Answer : Which of the atomic number represent the s-block elements? a. 7, 15 b. 3, 12 c. 6, 14 d. 9, 17

How do the elements in period 4 to show the physical state of the elements changes as the atomic number increases?

Description : How do the elements in period 4 to show the physical state of the elements changes as the atomic number increases?

Last Answer : The last members are bromine (liquid) and krypton (gas).

Are the elements on the periodic table organized by their atomic number?

Description : Are the elements on the periodic table organized by their atomic number?

Last Answer : Yes. The elements are arranged in increasing order of atomic number.

What element has an atomic number lower than that of aluminum and one less valence electron than group 16 elements?

Description : What element has an atomic number lower than that of aluminum and one less valence electron than group 16 elements?

Last Answer : Nitrogen

Are the elements on the periodic table organized by their atomic number?

Description : Are the elements on the periodic table organized by their atomic number?

Last Answer : Yes. The elements are arranged in increasing order of atomic number.

Atoms of different elements have - (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configuration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons

Description : Atoms of different elements have - (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configuration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons

Last Answer : (3) different atomic number and different number of valence electrons Explanation: Each element's atoms have a different number of protons, neutrons, and electrons, which is why they have different ... Their reactivity also varies because of the number and activeness of the electrons in the atom.

What are isobars? (1) Elements with same atomic number but different mass number (2) Elements with different atomic number but same mass number (3) Elements with different atomic number and different mass number (4) Elements with same atomic number and same mass number

Description : What are isobars? (1) Elements with same atomic number but different mass number (2) Elements with different atomic number but same mass number (3) Elements with different atomic number and different mass number (4) Elements with same atomic number and same mass number

Last Answer : (2) Elements with different atomic number but same mass number Explanation: Isobars are atoms of different chemical elements that have the same number of n cleons. Correspondingly, isobars differ in atomic number (number of protons) but have the same mass number.

Atomic number of which of the following elements is greater than that of Fluorine? (1) Sodium (2) Beryllium (3) Nitrogen (4) Boron

Description : Atomic number of which of the following elements is greater than that of Fluorine? (1) Sodium (2) Beryllium (3) Nitrogen (4) Boron

Last Answer : (1) Sodium Explanation: Sodium has higher atomic number (11) than Fluorine (9) The atomic number of Beryllium and Nitrogen are 4 and 7 respectively.

Which of the following elements has the atomic number greater than that of Phosphorus? (1) Aluminium (2) Silicon (3) Chlorine (4) Magnesium

Description : Which of the following elements has the atomic number greater than that of Phosphorus? (1) Aluminium (2) Silicon (3) Chlorine (4) Magnesium

Last Answer : (3) Chlorine Explanation: Chlorine is a chemical element with symbol Cl and atomic number 17. Phosphorus is a chemical element with symbol P and atomic number 15.

This scientist gave the law- ‘Properties of elements are a periodic function of their atomic number.’ This property of the fundamental importance of atomic number was discovered by- (1) Johann Wolfgang Döbereiner (2) John Newlands (3) Dmitri lvanovich Mendeléev (4) Henry Moseley

Description : This scientist gave the law- ‘Properties of elements are a periodic function of their atomic number.’ This property of the fundamental importance of atomic number was discovered by- (1) Johann Wolfgang Döbereiner (2) John Newlands (3) Dmitri lvanovich Mendeléev (4) Henry Moseley

Last Answer : (4) Henry Moseley Explanation: In 1913, Henry Moseley showed that the atomic number of an element is a more fundamental property than its atomic mass as described below.

When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as (A) Isomers (B) Isotopes (C) Isobars (D) Isotones

Description : When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as (A) Isomers (B) Isotopes (C) Isobars (D) Isotones

Last Answer : (D) Isotones

Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same (A) Period increases (B) Period decreases (C) Group increases (D) Both 'b' & 'c'

Description : Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same (A) Period increases (B) Period decreases (C) Group increases (D) Both 'b' & 'c'

Last Answer : Option D

Which one of the following best defines the word “allotropes”? A Different structural forms of an element B A pair of substances that differ by H+ C Elements that possess properties intermediate between those of metals and nonmetals D Atoms of a given atomic number that have a specific number of neutrons E The different phases (solid, liquid or gas) of a substance

Description : Which one of the following best defines the word allotropes ? A Different structural forms of an element B A pair of substances that differ by H+ C Elements that possess properties intermediate between ... a specific number of neutrons E The different phases (solid, liquid or gas) of a substance

Last Answer : A Different structural forms of an element 

Name this chemical element. The principal use of this element has been in solid-state electronic devices, notably transistors. Its position in the periodic table is in group "4A". The element's atomic number is 32 and its chemical symbol is Ge.

Description : Name this chemical element. The principal use of this element has been in solid-state electronic devices, notably transistors. Its position in the periodic table is in group "4A". The element's atomic number is 32 and its chemical symbol is Ge.

Last Answer : ANSWER: GERMANIUM

I will be describing a chemical element. Try to identify it with the fewest number of clues. This chemical element is a silver-white metal, with bluish tinge, capable of taking a high polish. T element occurs abundantly in all ordinary rocks, except limestone and sandstone; is third in abundance of the elements in the earth's crust and used to make drink cans. The atomic number of this element is 13. Name t element.

Description : I will be describing a chemical element. Try to identify it with the fewest number of clues. This chemical element is a silver-white metal, with bluish tinge, capable of taking a high polish. T element ... crust and used to make drink cans. The atomic number of this element is 13. Name t element.

Last Answer : ANSWER: ALUMINUM

1. Where do Sweat glands occur in greatest number? 2. What is the electorate for a Panchayat? 3. The cause of fractional atomic weights of elements? 4. The second largest river basin in India is of which river? 5. Which Sikh Guru called himself the ‘Sachcha Badshah’?

Description : 1. Where do Sweat glands occur in greatest number? 2. What is the electorate for a Panchayat? 3. The cause of fractional atomic weights of elements? 4. The second largest river basin in India is ... 19. Why does Mumbai receives more rainfall than Pune? 20. What was the real name of Tantiya Tope?

Last Answer : Answer : 1 1. In the skin of the armpits 2. The Gram Sabha 3. The presence of Isotopes 4. Godavari 5. Guru Hargovind 6. Friedrich Engels 7. Cooperation 8. 30 9. Krishna Basin 10. ... Birds from reptiles 18. Dr. Rajendra Prasad 19. Because mumbai is on the windward side 20. Ramchandra Panduranga

Atoms of different elements have (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configu-ration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons

Description : Atoms of different elements have (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configu-ration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons

Last Answer : different atomic number and different number of valence electrons

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.