Consider the elements B, Al, Mg and K predict the correct order of metallic character :

Consider the elements B, Al, Mg and K predict the correct order of metallic character :
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Consider the elements B, Al, Mg and K predict the correct order of metallic character : a. B > Al > Mg > K b. ... Al > K > B d. K > Mg > Al > B
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Arrange the following elements in increasing order of metallic character: B, Al, Mg and K.

Description : Arrange the following elements in increasing order of metallic character: B, Al, Mg and K.

Last Answer : Ans. The correct order is: B

The elements of the third period of the Periodic Table are given below: periodic-classification-of-elements-chapter-wise-important-questions-class-10-science-1 (a) Which atom is bigger, Na or Mg? Why? (6) Identify the most (i) metallic and (ii) non-metallic element in Period 3. -Science

Description : The elements of the third period of the Periodic Table are given below: periodic-classification-of-elements-chapter-wise-important-questions-class-10-science-1 (a) Which atom is bigger, Na or Mg? Why? (6) Identify the most (i) metallic and (ii) non-metallic element in Period 3. -Science

Last Answer : (a) Sodium is bigger than magnesium as it has lesser nuclear charge so there is less force of attraction between nucleus and valence electrons and less effective nuclear charge. It is, therefore, ... the most non-metallic element because it can gain electrons easily due to its smallest atomic size.

Arrange the following order of the property indicated: (a). F, Cl, Br and I (negative electron gain enthalpy) (b). Mg, Al, Si and Na (ionization enthalpy) (c). C, N, O and F (second ionization enthalpy)

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Would you consider someone who could actually predict the future to be a God or a time traveler? How could someone who claims to predict the future prove to you that they actually are?

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Which of the following species will have the largest and the smallest size `Mg, Mg^(2+), Al, Al^(3+)`?

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Number of metals among following which are obatained by electromentallurgy in molten state are Li, Ba, Na,Al, Fe, Cu, Pb, Sn, Ag, Zn, Ca, Mg.

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Brass is an alloy of : (1) Cu, Al and Zn (2) Cu and Sn (3) Cu and Zn (4) Al and Mg

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Last Answer : (B) 0

Which of the following places the common data elements in order from smallest to largest? a) Character, file, record, field, database b) Character, record, field, file, database c) Character, field, record, file, database d) Bit, byte, character, record, field, file, database

Description : Which of the following places the common data elements in order from smallest to largest? a) Character, file, record, field, database b) Character, record, field, file, database c) Character, field, record, file, database d) Bit, byte, character, record, field, file, database

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Which of the following places the common data elements in order from smallest to largest? 1) Character, file, record, field, database 2) Character, record, field, file, database 3) Character, field, record, file, database 4) Bit, byte, character, record, field, file, database

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Last Answer : 3) Character, field, record, file, database

(a) What are ‘groups’ and ‘periods’ in the ‘periodic table’? (b) Two elements M and N belong to group I and II respectively and are in the same period of the periodic table. How do the following properties of M and N vary? Sizes of their atoms Their metallic characters Their valencies in forming oxides Molecular formulae of their chlorides -Science

Description : (a) What are groups' and periods' in the periodic table'? (b) Two elements M and N belong to group I and II respectively and are in the same period of the periodic ... Sizes of their atoms Their metallic characters Their valencies in forming oxides Molecular formulae of their chlorides -Science

Last Answer : (a) The vertical columns in the periodic table are called groups'. The horizontal rows in the periodic table are called periods'. (b) M' and N' belong to same period but group I ... oxides. Valency goes on increasing first and then decreases. MCI, NCI2 are molecular formulae of their chlorides.

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.

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In terms of valence electrons what is the different between metallic elements and nonmetallic elements?

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Name two elements, which are Non-metallic in nature in 5th A group ?

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Last Answer : D) Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

Figure out the odd statement about ceramics in the following (a) Good insulators of heat and electricity (b) Usually less desire than metals (c) Ductile in nature (d) Contains both metallic and nonmetallic elements

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Which member of the GROUP SIX A elements is the least metallic?

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Planning or arranging the student’s environment in order to predict the consequences of a student’s behaviour is referred to as Options: A) Prompting B) Reinforcement C) Shaping D) Stimulus control

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The increasing order of reactivity among group 1 elements is Li<Na<K<Rb<Cs whereas among the group 17 elements, it is F>Cl>Br>I. Explain.

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In the reaction M g C I 2 plus 2 KO H - and gt MG OH 2 plus 2 K CI if 1 mole Mg CI 2 is added to 3 moles KO H what is the limiting reagent?

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Na+/K+-ATPase along with ATP requires (A) Ca (B) Mn (C) Mg (D) Cl

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The predominant cation of plasma is (A) Na+ (B) K+ (C) Ca+ (D) Mg++

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NH+ 4 aminates glutamate to form glutamine requiring ATP and (A) K+ (B) Na+ (C) Ca++ (D) Mg++

Description : NH+ 4 aminates glutamate to form glutamine requiring ATP and (A) K+ (B) Na+ (C) Ca++ (D) Mg++

Last Answer : Answer : D

The enzyme carbamoyl phosphate synthetase requires (A) Mg++ (B) Ca++ (C) Na+ (D) K+

Description : The enzyme carbamoyl phosphate synthetase requires (A) Mg++ (B) Ca++ (C) Na+ (D) K+

Last Answer : Answer : A

Renin converts casein to paracasein in presence of (A) Ca++ (B) Mg++ (C) Na+ (D) K+

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Deficiency symptoms of N, P, K, Mg and Mo appear in

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