Elements are arranged in the periodic table in order of increasing atomic number. For example hydrogen has the atomic number of one, helium two, lithium three etc. The first energy level (the one ...

Six-mark questions are extended open response questions. These require longer answers than the structured questions that have fewer marks. It is wise to plan your answer first by making some notes.

Researchers from Tokyo University of Science, led by Associate Professor Naoto Kitamura, investigated the atomic structure of TiNb 2 O 7 and found that optimizing network topology is key to ...

The newly engineered alloy owes its superior properties to a unique nanoscale structure featuring precisely ordered copper ...