What are s- block elements?

What are s- block elements? 
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1 Answer

Answer :

s-block elements are those in which the last electron enters the outermost s-orbital. As the s-orbital can accommodate only two electrons, two groups (1 & 2) belong to the s-block of the Periodic Table. 
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Related questions

The binary compound of Hydrogen with S block elements are called as ------------------

Description : The binary compound of Hydrogen with S block elements are called as ------------------

Last Answer : Ans: ionic hydride

Why do transition metals have higher I.E than s –block elements ?

Description : Why do transition metals have higher I.E than s –block elements ?

Last Answer : Ans: It is due to smaller atomic size than s-block elements , effective nuclear charge is more , terefore I.E is high.

Which elements of s- block are largely found in biological fluids & what is its importance?

Description : Which elements of s- block are largely found in biological fluids & what is its importance?

Last Answer : Mono valent sodium and potassium ions and divalent magnesium and calcium ions are found in large proportions in biological fluids. These ions perform important biological functions such as maintenance of ion balance and nerve impulse conduction.

Find out the s - block elements compounds importance/uses.

Description : Find out the s - block elements compounds importance/uses.

Last Answer : Find out the s - block elements compounds importance/uses.

What are the valence electrons? For s-block and p-block elements show that number of valence electrons is equal to its group number.

Description : What are the valence electrons? For s-block and p-block elements show that number of valence electrons is equal to its group number.

Last Answer : What are the valence electrons? For s-block and p-block elements show that number of valence electrons is equal to its group number.

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

The tendency for complex formation is maximum in (a) s-block elements (b) p-block elements (c) noble gases (d) d-block elements

Description : The tendency for complex formation is maximum in (a) s-block elements (b) p-block elements (c) noble gases (d) d-block elements

Last Answer : Ans:(d)

The elements of the s-block and pblock are together referred to as?

Description : The elements of the s-block and pblock are together referred to as?

Last Answer : Representative elements

Give 3 features of p- block Elements.

Description : Give 3 features of p- block Elements.

Last Answer : Ans: (i) some of them are non metals especially those heading all the groups. ( ii) Moving down the group metallic character increases (iii) Many of them are highly electronegative and form covalent compound

How many elements are found in 4Th period in d- block?

Description : How many elements are found in 4Th period in d- block?

Last Answer : Ans: 10 elements

In p block elements which group is known as halogens and chalcogens?

Description : In p block elements which group is known as halogens and chalcogens?

Last Answer : Ans: 17 =halogen 16=chalcogens

What are d Block Elements ?

Description : What are d Block Elements ? 

Last Answer : Ans: Those elements in which d-orbital are progressively filled up are known as d-orbital.

Application of d- & f- block elements

Description : Application of d- & f- block elements

Last Answer : Application of d- & f- block elements:- 1. Iron and steel used in construction,as catalyst in Haber's process 2. CrO2 is used in magnetic tapes 3. Ni is in hydrogenation 4. W ( ... in contact process 9. Titanium is in nuclear reactions. 10. PdCl2 is in Wacker's process.

The block of elements in the periodic table which are filling the 4-f electron shell are known as:

Description : The block of elements in the periodic table which are filling the 4-f electron shell are known as:

Last Answer : ANSWER: LANTHANIDES

What are d block elements?

Description : What are d block elements?

Last Answer : The d-block contain elements from group 3 to 12.

What are the properties of 'f ' block elements?

Description : What are the properties of 'f ' block elements?

Last Answer : they are of two types lanthanides and actinides

What are the properties of 'f ' block elements?

Description : What are the properties of 'f ' block elements?

Last Answer : they are of two types lanthanides and actinides

f-block elements are also called (a) Alkali metals (b) Inner transition elements (c) Transition elements (d) Transuranic elements

Description : f-block elements are also called (a) Alkali metals (b) Inner transition elements (c) Transition elements (d) Transuranic elements

Last Answer : Ans:(b)

Which of the following circuit elements is used to 'block' DC in an electronic circuit? (1) Resistances (2) Capacitance (3) Inductance (4) Diode

Description : Which of the following circuit elements is used to 'block' DC in an electronic circuit? (1) Resistances (2) Capacitance (3) Inductance (4) Diode

Last Answer : (2) Capacitance Explanation: A capacitor (originally known as condenser) is a passive two-terminal electrical component used to store energy in an electric field. Capacitors are widely used ... electric power transmission systems for stabilizing voltage and power flow, and for many other purposes.

In addition to testing the calibration of a circuit breaker, maintenance should include all of the following EXCEPT ______________. A. changing out of magnetic elements and thermal heaters yearly B. checking for corrosion, accumulation of dirt and thermal fatigue C. inspecting for loose or missing parts D. making sure foreign matter does not block tripping element

Description : In addition to testing the calibration of a circuit breaker, maintenance should include all of the following EXCEPT ______________. A. changing out of magnetic elements and thermal heaters yearly B. ... for loose or missing parts D. making sure foreign matter does not block tripping element

Last Answer : Answer: A

Find the block to which the following elements belong.

Description : Find the block to which the following elements belong.

Last Answer : a) Aluminium (Atomic number: 13) 2 2 6 2 Electronic configuration of aluminium is 1s , 2s 2p ,3s 3p 1 The orbital occupied by the ultimate electron is p'. So aluminium belongs to p' block. ... , 2 6s The orbital occupied by the penultimate shell is f'. So Cerium belongs to f' block.

Why ‘f block’ elements are called inner transition elements?

Description : Why ‘f block’ elements are called inner transition elements?

Last Answer : The elements for which f sub shells are filling are called the inner transition elements.

Why are‘d block’ elements called outer transition elements?

Description : Why are‘d block’ elements called outer transition elements?

Last Answer : ‘d block’ elements are called outer transition elements because they contain at most two electrons in their outer shell.

Which of the following circuit elements is used to ‘block’ DC in an electronic circuit ? (1) Resistances (2) Capacitance (3) Inductance (4) Diode

Description : Which of the following circuit elements is used to ‘block’ DC in an electronic circuit ? (1) Resistances (2) Capacitance (3) Inductance (4) Diode

Last Answer : Capacitance

Explain the Mechatronics system with the help of block diagram and labeled the various elements.

Description : Explain the Mechatronics system with the help of block diagram and labeled the various elements. 

Last Answer : The key elements of Mechatronics systems can be classified under following categories:  Information systems  Mechanical systems  Electrical systems  Computer systems  Sensor and actuators  ... is adjusted based on generated error and again signal is given to actuators and sensors.

What is S block element ?

Description : What is S block element ?

Last Answer : When the last electron enters the S / P / d orbital during the electron configuration of the element, it is called a block element.

An element of atomic no. 29 belongs to (1) s-block (2) d-block (3) p-block (4) f-block

Description : An element of atomic no. 29 belongs to (1) s-block (2) d-block (3) p-block (4) f-block

Last Answer : (2) d-block Explanation: Copper (Cu) has the atomic number of 29. Copper belongs to the d-block which is the collective name for Groups 3 to 12 in the periodic table. Most of the d-block elements are considered to be metals, with a common lustrous metallic appearance.

An element of atomic no. 29 belongs to (1) s-block (2) d-block (3) p-block (4) f-block

Description : An element of atomic no. 29 belongs to (1) s-block (2) d-block (3) p-block (4) f-block

Last Answer : d-block