Flashcards
Vocabulary Lesson 2
Cards in this deck (7)
- 1Atomic Numberis the number of protons found in the nucleus of every atom of that element.
- 2Isotopeeach of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei
- 3Mass numberthe total number of protons and neutrons in a nucleus.
- 4Average Atomic Massis the weighted average mass of the atoms in a naturally occurring sample of the element
- 5Radioactiveemitting or relating to the emission of ionizing radiation or particles.
- 6Nuclear Decayis the process by which an unstable atomic nucleus loses energy by radiation.
- 7Ionany atom or group of atoms that bears one or more positive or negative electrical charges
