What is the name of the family of reactive metals having valency two?

What is the name of the family of reactive metals having valency two?
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What is the name of the family of reactive metals having valency two?
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What is the name of the family of reactive metals having valency one?

Description : What is the name of the family of reactive metals having valency one?

Last Answer : What is the name of the family of reactive metals having valency one?

(A) Au,Pt,Ag etc are found in free state (R ) The metals which are noble and chemically less reactive are found in free state

Description : (A) Au,Pt,Ag etc are found in free state (R ) The metals which are noble and chemically less reactive are found in free state

Last Answer : (A) Au,Pt,Ag etc are found in free state (R ) The metals which are noble and chemically less reactive ... D. If (A) is incorrect but (R ) is correct

Are alkaline metals reactive?

Description : Are alkaline metals reactive?

Last Answer : Alkaline metals are the most reactive metals.

Is zinc less reactive with potassium based from activity series of metals?

Description : Is zinc less reactive with potassium based from activity series of metals?

Last Answer : Yes, zinc is LESS reactive than potassium based on the activityseries.

What group of non metals are the most reactive?

Description : What group of non metals are the most reactive?

Last Answer : The most reactive nonmetal is fluorine. Fluorine is a halogen, which is Group 17 on the Periodic Table, and the halogens are the most reactive...

Give reason: Some metals are more reactive than others.

Description : Give reason: Some metals are more reactive than others.

Last Answer : Metals are electropositive and have tendency to donate electrons. Some elements give up their valence electrons and hence more reactive.

Which of the following metals is LEAST reactive toward atmospheric oxygen? w) Lead x) Copper y) Iron z) Aluminum

Description : Which of the following metals is LEAST reactive toward atmospheric oxygen? w) Lead x) Copper y) Iron z) Aluminum

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The two elements required to form substitutional solid solution should not have (A) Same crystalline structure (B) Same valency (C) Widely differing electronegativity (D) Same atomic sizes

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An element X has a mass number 4 and atomic number 2. Write the valency of this element? -Science

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Why do Helium, Neon and Argon have a zero valency? -Science

Description : Why do Helium, Neon and Argon have a zero valency? -Science

Last Answer : Helium has 2 electrons in its outermost orbit thus filling shell 1 and forming duplet configuration in the valence shell. Neon has 8 electrons in their valence orbit hence completing duplet ... reach stable electron configuration and they will not take part in any sort of chemical reactions.

The valency of silicon is -Science

Description : The valency of silicon is -Science

Last Answer : According to the electronic configuration the valency is +4 or -4 because silicon can either gain 4 electrons or lose 4 electrons because it is a noble gas. Hence valency of silicon is 4

Difference between Valency and Valence electrons ? -Chemistry

Description : Difference between Valency and Valence electrons ? -Chemistry

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An atom has atomic number 12, what is its valency and name the element? -Chemistry 9th

Description : An atom has atomic number 12, what is its valency and name the element? -Chemistry 9th

Last Answer : Element with atomic number 12 is Magnesium (Mg). Electronic configuration of magnesium is 1s2 2s2 2p6 3s2. It has 2 e- in its outermost orbit and can donate these to form a stable octet. Hence, its valency is +2.

Define the term valency. What is the valency for magnesium and copper? -Chemistry 9th

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Last Answer : The no.of electrons required for the element to be octate or duplate is known as valency. Magnesium = 2 Copper = 1 hope this helps u

If a metal X with valency 3 combines with a non-metal Y with a valency 2, what will be the formula of the compound formed when X and Y combines?

Description : If a metal X with valency 3 combines with a non-metal Y with a valency 2, what will be the formula of the compound formed when X and Y combines?

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Find the valency factor for following bases : `(i) Ca(OH)_(2) " " (ii) CsOH " " (iii) Al(OH)_(3)`

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Find the the valency factor for following acids `(i) CH_(3)CO OH " " (ii) NaH_(2)PO_(4) " " (iii) H_(3)BO_(3)`

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How does valency of an element vary across a period?

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Find the atomic structure of `._(12)^(24)Mg`. What is its valency?

Description : Find the atomic structure of `._(12)^(24)Mg`. What is its valency?

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The valency is zero for

Description : The valency is zero for

Last Answer : The valency is zero for A. Neon B. Fluorine C. Oxygen D. Carbon

What the valency of bicarbonate is?

Description : What the valency of bicarbonate is?

Last Answer : The charge of ion bicarbonate, HCO3 (not valency) is -1.

What is the valency of fluorine in calcium fluoride?

Description : What is the valency of fluorine in calcium fluoride?

Last Answer : 1. This is answerI have another question to ask youWhat is the valency of calcium in calcium flouridePlease can you answer to my question

Why the valency of an element is a whole number?

Description : Why the valency of an element is a whole number?

Last Answer : Because there is no such thing as a fraction of an electron.

Tyrosine of thyroglobulin is acted upon by ________ to give mono and diiodo tyrosines. (A) Potassium Iodide (B) Iodine (C) Iodide I (D) Higher valency state of iodine (I+)

Description : Tyrosine of thyroglobulin is acted upon by ________ to give mono and diiodo tyrosines. (A) Potassium Iodide (B) Iodine (C) Iodide I (D) Higher valency state of iodine (I+)

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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

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The valency of carbon is

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Last Answer : four.

Why do inert gases have zero valency?

Description : Why do inert gases have zero valency?

Last Answer : Inert gases have zero valency because their octet is complete.

Define: (a) Radical (b) Valency (c) Molecular formula

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Last Answer : (a) Radical: A radical is an atom of an element or a group of atoms of different elements that behaves as a single unit with a positive or negative charge on it.  (b) Valency: It is the ... number of atoms of each element present in it. These atoms combine in whole number to form the molecule. 

Why chlorine is electronegative? What type of valency it will show with hydrogen.

Description : Why chlorine is electronegative? What type of valency it will show with hydrogen.  

Last Answer : Chlorine gains one electron from another atom so as to complete its octet therefore chlorine is electronegative.  Type of valency with hydrogen : Co-valency.  

Define valency. Write their types.

Description : Define valency. Write their types.

Last Answer : Valency:- The number of electrons donated (lose) or accepted (gain) or shared by atom of an element in order to complete its octet & attain stability is called as Valency.  Types of Valency : 1. Electro valency 2. Co valency 3. Co-ordinate valency

Define: i) Valency ii) Valence electrons.

Description : Define: i) Valency ii) Valence electrons. 

Last Answer : Valency:- The number of electrons donated (lose) or accepted (gain) or shared by atom of an element in order to complete its octet & attain stability is called as Valency.  Valence electrons: ... in the outermost orbit of an atom determine the valency of an atom and hence called valence electrons. 

Why would a scientist store a super reactive element in a container with another element from the noble gas family?

Description : Why would a scientist store a super reactive element in a container with another element from the noble gas family?

Last Answer : Noble gasses are nonreactive and would prevent air from enteringthe container, protecting the "super reactive element" fromexposure to air that it might react with.

Why chemists might sometimes store reactive chemicals in argon An. To which family does argon belong?

Description : Why chemists might sometimes store reactive chemicals in argon An. To which family does argon belong?

Last Answer : What is the answer ?

Which is the most reactive element in Nitrogen family ?

Description : Which is the most reactive element in Nitrogen family ?

Last Answer : Phosphorous

Compounds of carbon having double or triple bonds between their carbon atoms are called (1) Saturated compounds (2) Unsaturated compounds (3) Reactive compounds (4) None of the above

Description : Compounds of carbon having double or triple bonds between their carbon atoms are called (1) Saturated compounds (2) Unsaturated compounds (3) Reactive compounds (4) None of the above

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Catalytic converters are fitted in to automobiles for reducing emission of poisonous gases, having expensive metals namely.

Description : Catalytic converters are fitted in to automobiles for reducing emission of poisonous gases, having expensive metals namely.

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Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. Pseudo halogens can acts as ligands

Description : Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. Pseudo halogens can acts as ligands

Last Answer : Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. ... and C black D. `Na(CN)_2^-`

Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. Pseudo halogens can acts as ligands

Description : Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. Pseudo halogens can acts as ligands

Last Answer : Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. ... NaBr C. (C) NaF D. (D) Nal

Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. Pseudo halogens can acts as ligands

Description : Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. Pseudo halogens can acts as ligands

Last Answer : Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. ... . H_2O` D. (D) None of these

Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. Pseudo halogens can acts as ligands

Description : Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. Pseudo halogens can acts as ligands

Last Answer : Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides ... . `NaCN, NaOCN` D. `HCOONa, NH_3`

Which one of the following metals pollutes the air of a city having large number of automobiles? A. Cadmium B. Chromium C. Lead D. Copper

Description : Which one of the following metals pollutes the air of a city having large number of automobiles? A. Cadmium B. Chromium C. Lead D. Copper

Last Answer : ANSWER: C

Four solid cubes of different metals, each one having a mass of one kg are weighed in water select the correct statement: (a) all cubes weigh equal (b) cube with minimum density weighs minimum (c) cube with minimum density weighs maximum (d) the mass of all cubes will be the same

Description : Four solid cubes of different metals, each one having a mass of one kg are weighed in water select the correct statement: (a) all cubes weigh equal (b) cube with minimum density weighs minimum (c) cube with minimum density weighs maximum (d) the mass of all cubes will be the same

Last Answer : Ans:(b)

Which one of the following metals pollutes the air of a city having large number of automobiles? (1) Cadmium (2) Chromium (3) Lead (4) Copper

Description : Which one of the following metals pollutes the air of a city having large number of automobiles? (1) Cadmium (2) Chromium (3) Lead (4) Copper

Last Answer : (3) Lead Explanation: The history of car pollution has been one of air and water contamination followed by regulated improvement. Cars and trucks cause a lot of air the pollution in the world ... . But since leaded gasoline has been phased out, lead emissions have decreased by about 98 percent.

Heavy water used in the nuclear reactors to slow down the speed of neutrons is (A) Highly purified water (B) A compound of oxygen and deuterium (C) Water having dissolved salts of heavy metals (D) None of these

Description : Heavy water used in the nuclear reactors to slow down the speed of neutrons is (A) Highly purified water (B) A compound of oxygen and deuterium (C) Water having dissolved salts of heavy metals (D) None of these

Last Answer : (B) A compound of oxygen and deuterium

Babbitt metals used for making bearings are (A) Tin or lead based alloys (B) Short of antifrictional properties (C) Having homogenous microstructure (D) Yellow metals

Description : Babbitt metals used for making bearings are (A) Tin or lead based alloys (B) Short of antifrictional properties (C) Having homogenous microstructure (D) Yellow metals

Last Answer : (A) Tin or lead based alloys

Moist atmospheric air at high temperature (e.g., in summer) having high concentration of sulphur dioxide causes(A) Fading of dyes on textiles(B) Corrosion, tarnishing & soiling of metals(C) Reduced strength of textiles(D) All (A), (B) and (C)

Description : Moist atmospheric air at high temperature (e.g., in summer) having high concentration of sulphur dioxide causes (A) Fading of dyes on textiles (B) Corrosion, tarnishing & soiling of metals (C) Reduced strength of textiles (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Pick out the wrong statement. (A) Copper is the metal having the highest electronic conductivity (B) Hardenability & Weldability of metals are inversely related (C) Covalent bonding formed by sharing of electrons is present in all semiconductor materials (D) Glass transition temperature applies to 'polymers' but not to 'glasses'

Description : Pick out the wrong statement. (A) Copper is the metal having the highest electronic conductivity (B) Hardenability & Weldability of metals are inversely related (C) Covalent bonding formed by ... all semiconductor materials (D) Glass transition temperature applies to 'polymers' but not to 'glasses'

Last Answer : Option A

Which one of the following metals pollutes the air of a city having large number of automobiles? (1) Cadmium (2) Chromium (3) Lead (4) Copper

Description : Which one of the following metals pollutes the air of a city having large number of automobiles? (1) Cadmium (2) Chromium (3) Lead (4) Copper

Last Answer : Lead

Materials having electrical conductivity much less than most of the metals but much greater than that of...

Description : Materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators, are known as A. Thermistors B. Varistors C. Semi-conductors D. Variable resistors. 

Last Answer : Materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators, are known as Semi-conductors.

_______are the materials having electrical conductivity much less than most of the metals but much greater...

Description : _______are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators.

Last Answer : Semi-conductors are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators.