In 1866, John Newlands, an English scientist, arranged the then known elements in the order of increasing atomic masses. He found that every eighth element had properties similar to that of the first. He called it the - (1) Law of Pentamates (2) Law of musical notes (3) Law of Octaves (4) None of the above

In 1866, John Newlands, an English scientist, arranged the then known elements in the order of increasing atomic masses. He found that every eighth element had properties similar to that of the first. He called it the - (1) Law of Pentamates (2) Law of musical notes (3) Law of Octaves (4) None of the above
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(3) Law of Octaves Explanation: Newlands compared his discovery to the octaves found in music and thus, he called it the ‘Law of Octaves’. It is also known as ‘Newlands’ Law of Octaves’.
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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

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.

X and Y are the two elements having similar properties which obey Newland’s law of octaves. How many elements are there in-between X and Y?

Description : X and Y are the two elements having similar properties which obey Newland’s law of octaves. How many elements are there in-between X and Y?

Last Answer : There are 6 elements between X and Y

Iron which resembles Cobalt and Nickel in properties has been placed far away from these elements. This was one of the limitations of : (1) Modern periodic table (2) Newland's law of octaves (3) Dobereiner's triads (4) Mendeleev's periodic table

Description : Iron which resembles Cobalt and Nickel in properties has been placed far away from these elements. This was one of the limitations of : (1) Modern periodic table (2) Newland's law of octaves (3) Dobereiner's triads (4) Mendeleev's periodic table

Last Answer : (2) Newland's law of octaves Explanation: Among the major limitations of Newlands Law of Octaves, some similar elements have been separated from one another while some dissimilar elements have been placed in the same column.

Which of the following is true regarding Newland’s Law of Octaves? (1) It worked well with only lighter elements. (2) It was applicable only up to calcium. (3) Both are correct (4) Both are incorrect. (4)

Description : Which of the following is true regarding Newland’s Law of Octaves? (1) It worked well with only lighter elements. (2) It was applicable only up to calcium. (3) Both are correct (4) Both are incorrect. (4)

Last Answer : (3) Both are correct Explanation: Both the statements are correct. Hence, option C is correct.

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.

what is Newlands' law of octaves? Explain with example

Description : what is Newlands' law of octaves? Explain with example

Last Answer : what is Newlands' law of octaves? Explain with example

State Newland’s law of Octaves.

Description : State Newland’s law of Octaves.

Last Answer : New land law of octaves states that “When elements are arranged in the order of increasing atomic mass, the properties of the eighth element (starting from any given element) are a repetition of the properties of the first element”

According to Newland’s classification of elements, the properties of sulphur are similar to those of oxygen because sulphur is the

Description : According to Newland’s classification of elements, the properties of sulphur are similar to those of oxygen because sulphur is the

Last Answer : eighth element starting from oxygen

NEWLAND’S OCTAVES

Description : NEWLAND’S OCTAVES

Last Answer :  After failure of Dobereiner's triads, newland's octaves classification was done.  56 elements were discovered.  Elements are arranged in an increasing order of their atomic masses.  Every ... later several elements were known.  It not includes inert gases because they were not discovered.

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)

What similarity was observed by Newland in the properties of elements and octaves of music?

Description : What similarity was observed by Newland in the properties of elements and octaves of music?

Last Answer : When Newland arranged the elements, he found that the properties of eighth element resembled the properties of the first element, This repetition in the properties is just like the repetition of eighth note in an octave of music. (sarega ma pa da nisa)

The periodicity of repetition of properties in Newland’s law was

Description : The periodicity of repetition of properties in Newland’s law was

Last Answer : eight.

The periodic law states that the properties of elements will repeat when the elements are arranged by _______.?

Description : The periodic law states that the properties of elements will repeat when the elements are arranged by _______.?

Last Answer : increasing atomic number

The cause of periodicity of properties (a) Increasing atomic radius (b) Increasing atomic weights (c) Number of electrons in the valency orbit (d) The recurrence of similar outer electronic configuration

Description : The cause of periodicity of properties (a) Increasing atomic radius (b) Increasing atomic weights (c) Number of electrons in the valency orbit (d) The recurrence of similar outer electronic configuration

Last Answer : Ans:(d)

John Snow was able to correlate the spread of cholera with a contaminated _____ in London in 1866. a. Water Pump b. Dairy c. Butcher Shop d. Hand Soap

Description : John Snow was able to correlate the spread of cholera with a contaminated _____ in London in 1866. a. Water Pump b. Dairy c. Butcher Shop d. Hand Soap

Last Answer : a. Water Pump

John Snow was able to correlate the spread of cholera with a contaminated _____ in London in 1866. a. Water Pump b. Dairy c. Butcher Shop d. Hand Soap

Description : John Snow was able to correlate the spread of cholera with a contaminated _____ in London in 1866. a. Water Pump b. Dairy c. Butcher Shop d. Hand Soap

Last Answer : a. Water Pump

The German chemist who pointed out that many of the known elements could be arranged in groups of three similar elements was

Description : The German chemist who pointed out that many of the known elements could be arranged in groups of three similar elements was

Last Answer : Dobereiner.

Consider the isotopes of carbon, C-12 and C-14. Would you place them in different slots because their atomic masses are different or would you place them in the same position because their chemical properties are the same?

Description : Consider the isotopes of carbon, C-12 and C-14. Would you place them in different slots because their atomic masses are different or would you place them in the same position because their chemical properties are the same?

Last Answer : Isotopes are not placed according to their atomic mass but they are all placed in the same position as they have the same atomic number.

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 

How do the decimal places on the atomic masses of elements realate to isotopes?

Description : How do the decimal places on the atomic masses of elements realate to isotopes?

Last Answer : The Atomic Mass of an element is the weighted average of massesof the isotopes of the element, weighted in proportion to theirabundance.

How do the decimal places on the atomic masses of elements realate to isotopes?

Description : How do the decimal places on the atomic masses of elements realate to isotopes?

Last Answer : The Atomic Mass of an element is the weighted average of massesof the isotopes of the element, weighted in proportion to theirabundance.

In 44 time two eighth notes are eaqual to?

Description : In 44 time two eighth notes are eaqual to?

Last Answer : 44 times 2/8 equals 11

How many rhythms can a dotted quarter note and quarter note and Pair of eighth notes?

Description : How many rhythms can a dotted quarter note and quarter note and Pair of eighth notes?

Last Answer : how many rhythms can a dotted quarter note , quarter note andPair of eighth notes

How many rhythms can a dotted quarter note and quarter note and Pair of eighth notes?

Description : How many rhythms can a dotted quarter note and quarter note and Pair of eighth notes?

Last Answer : how many rhythms can a dotted quarter note , quarter note andPair of eighth notes

All isotopes of the same element have (1) different atomic numbers and different atomic mass (2) different atomic numbers and the same atomic mass (3) the same atomic number but different atomic masses (4) the same atomic number and the atomic mass

Description : All isotopes of the same element have (1) different atomic numbers and different atomic mass (2) different atomic numbers and the same atomic mass (3) the same atomic number but different atomic masses (4) the same atomic number and the atomic mass

Last Answer : (3) the same atomic number but different atomic masses Explanation: Isotopes are forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei. So they have the same atomic number, but differ in relative atomic mass.

In a triad A, B and C, the atomic masses of A and B are 80 and 120 respectively. What is the atomic mass of element C?

Description : In a triad A, B and C, the atomic masses of A and B are 80 and 120 respectively. What is the atomic mass of element C?

Last Answer : Atomic mass of A=80 Atomic mass of B=120 A C 2 Atomic mass of B = 80 C 2 120x2 80 C 120 240 C 80 C 240 80 C 160

All isotopes of the same element have ______ (1) different atomic numbers and different atomic mass (2) different atomic numbers and the same atomic mass (3) the same atomic number but different atomic masses (4) the same atomic number and the atomic mass

Description : All isotopes of the same element have ______ (1) different atomic numbers and different atomic mass (2) different atomic numbers and the same atomic mass (3) the same atomic number but different atomic masses (4) the same atomic number and the atomic mass

Last Answer :  the same atomic number but different atomic masses

When was the first law regarding transportation of hazardous materials passed? a) 1966 b) 1866 c) 1855 d) 1965

Description : When was the first law regarding transportation of hazardous materials passed? a) 1966 b) 1866 c) 1855 d) 1965

Last Answer : 1866

Newlands' table, the elements were placed with the halogens - (1) Mn and As (2) Fe and Se (3) Ce and La (4) Co and Ni

Description : Newlands' table, the elements were placed with the halogens - (1) Mn and As (2) Fe and Se (3) Ce and La (4) Co and Ni

Last Answer : (4) Co and Ni Explanation: Newlands' Law of Octaves suffered from lot of limitations, In order to fit elements into his table, Newlands ad justed two elements in the same slot, but also put some unlike elements under the same note.

The order of increasing size of atomic radii among the elements O,S,Se and As

Description : The order of increasing size of atomic radii among the elements O,S,Se and As

Last Answer : The order of increasing size of atomic radii among the elements O,S,Se and As A. `AsltSltOltSe` B. `SeltSltAsltO` C. `OltSltAsltSe` D. `OltSltSeltAs`

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

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

`A={1, 2, 3, ..., 9}`. If three numbers are selected from set A and are arranged, the probability that three numbers are either in increasing order or

Description : `A={1, 2, 3, ..., 9}`. If three numbers are selected from set A and are arranged, the probability that three numbers are either in increasing order or

Last Answer : `A={1, 2, 3, ..., 9}`. If three numbers are selected from set A and are arranged, the probability that three numbers ... ` B. `2/3` C. `1/2` D. `1/3`

Which one of the following lists four type of coal, arranged in the increasing order of their carbon content? (a) Peat, Lignite, Bituminous, Anthracite (b) Peat, Bituminous, Lignite, Anthracite (c) Lignite, Peat, Bituminous, Anthracite (d) Peat, Anthracite, Lignite, Bituminous

Description : Which one of the following lists four type of coal, arranged in the increasing order of their carbon content? (a) Peat, Lignite, Bituminous, Anthracite (b) Peat, Bituminous, Lignite, Anthracite (c) Lignite, Peat, Bituminous, Anthracite (d) Peat, Anthracite, Lignite, Bituminous

Last Answer : Ans: (a)

Lights of different colours are arranged below in order of increasing wavelengths: 1. Violet, indigo, blue 2. Green, orange, red 3. Red, green, indigo 4. Blue, green, yellow Which of the above are in proper sequence? (a) 1 only (b) 1 and 2 (c) 2 and 3 (d) 1 and 4

Description : Lights of different colours are arranged below in order of increasing wavelengths: 1. Violet, indigo, blue 2. Green, orange, red 3. Red, green, indigo 4. Blue, green, yellow Which of the above are in proper sequence? (a) 1 only (b) 1 and 2 (c) 2 and 3 (d) 1 and 4

Last Answer : Ans:(d)

The reactivity series is a list of metals arranged in order of A) Increasing reactivity B) Decreasing reactivity C) Increasing and decreasing reactivity D) None of the above

Description : The reactivity series is a list of metals arranged in order of A) Increasing reactivity B) Decreasing reactivity C) Increasing and decreasing reactivity D) None of the above

Last Answer : B) Decreasing reactivity

Why Newland law of octaves is called so?

Description : Why Newland law of octaves is called so?

Last Answer : As Newland law is similar to the octaves in music, he called the law as law of octaves.

The mass spectrograph directly yields a value for which one of the following? w) mass of a photon x) mass of a neutron y) masses of isotopes of elements z) mass to charge ratio of ions

Description : The mass spectrograph directly yields a value for which one of the following? w) mass of a photon x) mass of a neutron y) masses of isotopes of elements z) mass to charge ratio of ions

Last Answer : ANSWER: Z -- MASS TO CHARGE RATIO OF IONS

Law of octaves was propounded by?

Description : Law of octaves was propounded by?

Last Answer : John Newland

What are the limitations of Newland law of Octaves?

Description : What are the limitations of Newland law of Octaves?

Last Answer : Newland law of octaves could not be extended after 17 elements.

Who gave the 'law of octaves'?

Description : Who gave the 'law of octaves'?

Last Answer : Ethanoic acid

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

104 The element with atomic number is named after which scientist ?

Last Answer : The 104th element is named after the scientist Rutherford.

In the modern periodic table, the elements are arranged in the ascending order of their

Description : In the modern periodic table, the elements are arranged in the ascending order of their

Last Answer : atomic number.

The band gap of elements arranged in ascending order is :

Description : The band gap of elements arranged in ascending order is : a. Diamond, Ge, Si b. Si, Ge, Diamond c. Ge, Si, Diamond d. Diamond, Si, Ge

Last Answer : answer is b

Writing A Musical Composition's Score Without Knowing How To Read Notes?

Description : Writing A Musical Composition's Score Without Knowing How To Read Notes?

Last Answer : Sure. I would suggest, however, to pick up What to Listen for in Music by Aaron Copland if you have the time.

what- Sing the notes of a musical scale to yourself?

Description : what- Sing the notes of a musical scale to yourself?

Last Answer : for adverbto yourself

How many notes are there in a musical scale?

Description : How many notes are there in a musical scale?

Last Answer : Answer: 7

Is melody a logical series of notes that express a musical thought?

Description : Is melody a logical series of notes that express a musical thought?

Last Answer : Expressing a musical thought - Hmm!I could go with a rhythmically organized sequence of singletones so related to one another as to make up a particular phraseor idea but I think "thought" is taking it too far. Basically amelody is a pleasing succession or arrangement of sounds, atune.