Introduction of S-block:
The S-block is a block placed in the periodic table that comprises of the first two groups, firstly the alkali metals and secondly the alkaline earth metals. The elements in the s-block generally show distinct trends in their chemical and physical properties, varying steadily moving down the groups. Their properties can easily describe in terms of their electronic configuration with their valence electrons occupying positions in s-orbitals. As per this definition, hydrogen and helium are sometimes also taken as a part of the s-block.
Properties of S-Block Elements
The modern periodic law says that an element's chemical and physical properties are generally periodic function of its atomic number. Long type of periodic table is based on modern periodic law. Long form is classified into four blocks called as s, p, d, and f. In an atom of an s-block element, the last electron enters in the s-orbital of the outermost electron shell.
Group 1:
Hydrogen (Z=1), Lithium (Z=3), Sodium (Z=11), Potassium (Z=19), Rubidium (Z=37), Caesium (Z=55), Francium (Z=87).
Group 2:
Beryllium (Z=4), Magnesium (Z=12), Calcium (Z=20), strontium (Z=38), Barium (Z=56), Radium (Z=88).
Anomalous properties of Lithium:
In alkali metal cations, lithium owns the smallest size and highest polarizing power. This characteristic differentiates lithium from its other family members. Lithium's covalence character is more, which is accountable for the solubility of it in organic solvent.
Email based S-Block Homework Help -Assignment Help
Tutors at the www.tutorsglobe.com are committed to provide the best quality S-Block homework help - assignment help. They use their experience, as they have solved thousands of the S-Block assignments, which may help you to solve your complex S-Block homework. You can find solutions for all the topics come under the S-Block. The dedicated tutors provide eminence work on your Inorganic Chemistry homework help and devoted to provide K-12 level Chemistry to college level Chemistry help before the deadline mentioned by the student. S-Block homework help is available here for the students of school, college and university. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.
Qualified and Experienced S-Block Tutors at www.tutorsglobe.com
Tutors at the www.tutorsglobe.com take pledge to provide full satisfaction and assurance in S-Block homework help. Students are getting Chemistry homework help services across the globe with 100% satisfaction. We value all our service-users. We provide email based S-Block homework help - assignment help. You can join us to ask queries 24x7 with live, experienced and qualified Chemistry tutors specialized in S-Block.
explain Purchasing and Receiving, All these things need a well-defined technique of purchasing. The steps in Purchase Procedure are Purchase Requisition, Purchase Order, Receiving the Materials
tutorsglobe.com chloroplast assignment help-homework help by online cell organelles tutors
theory and lecture notes of recovery protocols all along with the key concepts of recovery protocols, recovery management, recoverable operation. tutorsglobe offers homework help, assignment help and tutor’s assistance on recovery protocols.
tutorsglobe.com laboratory diagnosis and treatment assignment help-homework help by online hiv tutors
www.tutorsglobe.com offers preparation of 2º & 3º amines homework help, preparation of 2º & 3º amines assignment help, online tutoring assistance, organic chemistry solutions by online qualified tutor's help.
Elastic Constants of Crystals tutorial all along with the key concepts of Experimental determination of elastic constants, Elastic waves in cubic crystals, Elastic isotropy and Cauchy relation
tutorsglobe.com economic importance of gymnosperms assignment help-homework help by online spermatophytes tutors
tutorsglobe.com recombinant dna technology assignment help-homework help by online biotechnology tutors
are assignments giving you nightmares? get best accounting for fixed assets assignment help and attain a++ and make it a sweet dream.
tutorsglobe.com xerophytes assignment help-homework help by online hydrophytes-mesophytes-xerophytes tutors
tutorsglobe.com amitosis assignment help-homework help by online cell division tutors
organic spectroscopy tutorial all along with the key concepts of interaction of light and matter, properties of light, infrared absorption spectroscopy, infrared light absorption and molecular structure, determination of molecular structure, nuclear magnetic resonance spectroscopy
tutorsglobe.com albinism assignment help-homework help by online genetic diseases tutors
tutorsglobe.com bulb assignment help-homework help by online propagation by underground stem tutors
www.tutorsglobe.com offers measures of central tendency homework help, assignment help, online tutoring assistance, geometry mathematics solutions by online qualified tutor's help.
1944729
Questions Asked
3689
Tutors
1487055
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!