It is important to state, give, name or write down the number of things that the question ... More complex structured questions will be worth three or four marks. They include questions with ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

In these notes we have included all important topics of chapter Atomic Structure like atomic number, mass number, isobar, isotopes, isotones, isoelectronics, Planck equation, photoelectric effect ...

They have the same number of electrons in their outer shell, so similar chemical properties. Sample exam questions - atomic structure and the periodic table - AQA Understanding how to approach ...

Fission splits a heavy element (with a high atomic mass number) into fragments; while fusion joins two light elements (with a low atomic mass number), forming a heavier element. In both cases, energy ...