How is the block to which an element belongs determined?

How is the block to which an element belongs determined?
by

1 Answer

Answer :

If we know the atomic number and electronic configuration of an element, we can find the

block to which they belong. If the outermost sub energy level is ‘s’ then it belongs to ‘s

block’. If the outermost sub energy level is ‘p’ then it belongs to ‘p block’.

Example: Atomic number of sodium is 11. Its electronic configuration is 1s 2 , 2s 2 , 2p 6 , 3s 1 .

The orbital occupied by the outermost electron is s. So sodium belongs to‘s’ block.
by

Related questions

How is the period to which an element belongs determined?

Description : How is the period to which an element belongs determined?

Last Answer : If we know the atomic number and electronic configuration of an element, we can find the period to which it belongs by finding the number of shells. Total number of shells indicates period number. 2 2 6 2 ... 3s 6 2 3p , 4s . Highest shell number is 4 so calcium belongs to the 4 th period.

An element with atomic number 36 belongs to the (a) s-block (b) p-block (c) d-block (d) f-block

Description : An element with atomic number 36 belongs to the (a) s-block (b) p-block (c) d-block (d) f-block

Last Answer : Ans:(b)

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

The Himalayan mountain system belongs to which one of the following? [Asstt Grade 1991] (a) Fold mountains (b) Volcanic mountains (c) Block mountains (d) None of these

Description : The Himalayan mountain system belongs to which one of the following? [Asstt Grade 1991] (a) Fold mountains (b) Volcanic mountains (c) Block mountains (d) None of these

Last Answer : Ans: (a)

Soil colour determination is standardized and determined by the comparison of the soil colour to? a Tensiometer b Gypsum block c Munsell chart d None of the above

Description : Soil colour determination is standardized and determined by the comparison of the soil colour to? a Tensiometer b Gypsum block c Munsell chart d None of the above

Last Answer : c Munsell chart

which story element most closely belongs to Gothic literature?

Description : which story element most closely belongs to Gothic literature?

Last Answer : Frankenstein's obsession with his scientific pursuits (APEX) That is the correct answer when you’re talking about GOTHIC literature

When `._(88)^(226)Ra` emits an `alpha`-particle, the new element formed belongs to:

Description : When `._(88)^(226)Ra` emits an `alpha`-particle, the new element formed belongs to:

Last Answer : When `._(88)^(226)Ra` emits an `alpha`-particle, the new element formed belongs to: A. third group B. zero group C. fourth group D. second group

Which story element most closely belongs to Romantic literature?

Description : Which story element most closely belongs to Romantic literature?

Last Answer : Henry Clerval’s childhood stories and heroes and their adventures (apex)

From the elements: Cl, Br, F, O, Al, C, Li, Cs and Xe; choose the following: (a) The element with highest negative electron gain enthalpy. (b) The element with lowest ionization enthalpy. (c) The element with smallest ionic radius. (d) The element with six electrons in the valence shell. (e) The element which is a liquid at room temperature. (f)The element which belongs to zero group. (g) The elements which forms largest number of compounds.

Description : From the elements: Cl, Br, F, O, Al, C, Li, Cs and Xe; choose the following: (a) The element with highest negative electron gain enthalpy. (b) The element with lowest ionization enthalpy. ( ... . (f)The element which belongs to zero group. (g) The elements which forms largest number of compounds.

Last Answer : Ans. (a). The element chlorine (Cl) has the highest negative electron gain enthalpy. (b). The element cesium (Cs) has lowest ionization enthalpy. (c). The element fluorine F has lowest atomic radius. (d ... zero group (or group 18). (g). The element carbon (C) forms the largest number of compounds.

How is the mass of 1 mole of an element determined?

Description : How is the mass of 1 mole of an element determined?

Last Answer : It is the same as the element’s Atomic Mass, but in grams.

Vane anemometer (A) Is an area meter (B) Is a variable head meter (C) Rotates an element at a speed determined by the velocity of the fluid inwhich the meter is immersed(D) None of these

Description : Vane anemometer (A) Is an area meter (B) Is a variable head meter (C) Rotates an element at a speed determined by the velocity of the fluid inwhich the meter is immersed (D) None of these

Last Answer : (C) Rotates an element at a speed determined by the velocity of the fluid inwhich the meter is immersed

An atom is-------? A. smallest indivisible particle in an element B. smallest particle of an element which can undergo a chemical reaction (Answer) C. building block of an element D. always smaller than molecule

Description : An atom is-------? A. smallest indivisible particle in an element B. smallest particle of an element which can undergo a chemical reaction (Answer) C. building block of an element D. always smaller than molecule

Last Answer : B. smallest particle of an element which can undergo a chemical reaction (Answer)

What is a block element ?

Description : What is a block element ?

Last Answer : The elements in which electrons gradually enter the d orbital are called d – block elements.

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.

What is a block element ?

Last Answer : : The elements that get electrons in the p orbital are called p blocks

cl Which block element ?

Last Answer : cl is a p block element

s Which block element ?

Last Answer : s is the p block element

If the valence shell electronic configuration of an element is 3s^2 3p^1, in which block of the periodic table is it placed?

Description : If the valence shell electronic configuration of an element is 3s^2 3p^1, in which block of the periodic table is it placed?

Last Answer : If the valence shell electronic configuration of an element is 3s2 3p1, in which block of the periodic table is it placed?

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