- Munir Ahmad served the International Atomic Energy Agency (IAEA) in Vienna.
- “PINSTECG” is the abbreviation of Pakistan Institute of Nuclear Science and Technology.
- Element is a pure substance that cannot be decomposed (broken down) into simpler substances.
- The letter used to identify an element in the periodic table is known as “Symbol”.
- The person who first arranged elements in form of periodic table was Mandeleev.
- There are about 92 naturally occurring elements.
- A substitute which consists of two or more elements which have been combined chemically is called Compound.
- The word plastic is derived from Greek “Plastikos” which means easily shaped or deformed.
- “Alexander Parkes” is the first man-made plastic.
- Plastic chemically refers to as synthetic high molecular weight chain molecule.