In a major development, Nigeria’s House of Representatives has directed the Federal Ministry of Education and WAEC to suspend the transition to computer‑based testing (CBT) for the 2026 West African Senior School Certificate Examination (WASSCE). The directive signals a significant delay—no CBT will be introduced until at least 2030 The decision followed a motion of urgent public importance raised by Kelechi Wogu, which expressed grave concern about students’ readiness. He raised low infrastructure levels, especially in rural areas, pointing out that many schools lack computers, reliable electricity, and qualified tech teachers. Why the Delay? WAEC is expected to run the 2026 exam across roughly 25,500 schools. With the four‑month examination window and the requirement to cover multiple subjects—including practicals—the House argued the shift to CBT could lead to mass failure, stress and “depression and deaths of students.” As a result, the House asked t...
Matter has different types of particles, such as atoms, ions, molecules, etc. An element is made up of atoms. A mole is used to represent the number of atoms in an element just as a crate is used to represent 30 eggs. Avogadro’s number is the number of units in a mole of any substance and it is equal to 6.02 x 10 23 . Therefore, one mole of any substance is represented by 6.02x10 23 . A diatomic element like chlorine is 6.02x10 23 molecules of chlorine. One mole of tetraoxosulphate (VI) oxide and one mole of methane each represents 6.02x10 23 molecules of these compounds. Similarly, sodium and calcium elements each also contain 6.02x10 23 atoms. Example Question 1 How many atoms are there in 10g of sodium? (Na = 23, Avogadro’s number = 6.02x10 23 ) Since one mole is equal to 6.02x10 23 and one mole is equal to relative atomic mass expressed in grams. 1mole = 6.02x10 23 1mole = 23g 23g = 6.0...