Dr. Tim: So this is the periodic table and each letter on it represents a different element. We call these letters symbols. And an element is a pure substance made from only one type of atom.

Whenever a variable is defined outside of the module environment, its name is stored in the global symbol table. Whenever you are programming in immediate mode outside of a module, you are working ...

In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, ...

Scientists use the periodic table to quickly refer to information about an element, like atomic mass and chemical symbol. The periodic table’s arrangement also allows scientists to discern trends in ...

The symbol serves as a shorthand notation for each ... These elements are organized in the periodic table based on their atomic numbers, which increase sequentially from 1 (Hydrogen) to 118 ...