Chem Flashcards
1
Q
atom
A
Basic unit of an element that can enter in a chemical combination.
2
Q
Element
A
substance that cannot be broken down into simpler substances
3
Q
Radiation
A
Emission and transmission of energy through space in the form of waves.
4
Q
Cathode Rays
A
Radiation (electron beams) emitted from the negatively charged plate in an evacuated tube when a high voltage is applied.
