HSC Timetable for July 2017 Exam Gujarat GSEB HSC Board

Date sheet for HSC GSEB Board – July 2017 exams for Repeaters HSC Board Exam – HSC Board Re-Exam Time Table – July 2017 Gujarat Secondary and Higher Secondary Education Board has declared Time Table for Higher Secondary Certificate Examination […]

HSC Timetable for July 2017 Exam Maharashtra HSC Board

hsc.co.in

Date sheet for HSC Board – July 2017 exams for Repeaters HSC Board Exam – HSC Board Re-Exam Time Table – July 2017(General & Bifocal) & Vocational ) Maharashtra State Board of Secondary and Higher Secondary Education Time Table for […]

HSC Timetable for July 2016 Exam Maharashtra HSC Board

12th std July 2016 time table

Latest Date Sheet for HSC Board 2017 HSC Board Exam – HSC Board Re-Exam Time Table – July 2016 (General & Bifocal) & Vocational ) Maharashtra State Board of Secondary and Higher Secondary Education Time Table for Higher Secondary Certificate […]

Maharashtra HSC Result 2016 declared: Girls outshine boys yet again

Maharashtra Class 12th HSC Board results for 2016 are announced on 25th May, 2016 at 1.00 P.M on their official site mahresult.nic.in Girls outshine boys yet again in Maharashtra HSC examination 2016. For the fifth consecutive year, Percentage of girl […]

Briefly explain why electronic configurations of lanthanoids are not known with certainty.

In the lanthanoids, 4f and 5d subshells are very close in energy. The outermost 6s-orbital remains filled with two electrons (6s2) . The electrons can easily jump from 4f to 5d or vice-versa. Further, irregularities in electronic configurations are also […]

What are lanthanoids? Explain the position of lanthanoids in the periodic table.

The series involving the filling of 4f-orbitals following lanthanum La (Z = 57) is called lanthanoid series. The elements present in this series are called lanthanoids. There are fourteen elements in this series starting with cerium, Ce(Z = 58) and […]

Explain the meaning of inner transition series.

i. The last electron in the f-block elements enters into (n-2) f-orbitals, i.e., inner to the penultimate energy level and they form a transition series within the transition series (d-block elements). Hence, the f-block elements are known as inner transition […]