Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
|
atom
|
the smallest particle of an element that retains all the properties of that element
|
|
|
atomic mass (atomic weight)
|
the weighted average atomic mass of the atoms in a naturally occuring sample of an element
|
|
|
atomic mass (of an individual atom)
|
mass of an atom relative to the mass of a Carnon-12 atom
|
|
|
atomic mass unit
|
(amu) 1/12 the mass of a Carbon-12 atom
|
|
|
atomic number
|
(Z) number of protons in the nucleus of an atom
|
|
|
chemical symbol
|
a shorthand representation for an element
|
|
|
isotopes
|
-atoms that have the same number of protons, but different number of neutrons
-atoms of the same element that have different atomic mass or mass numbers |
|
|
mass spectrometer
|
a device that separates atoms (ions) by mass
|
|
|
nucleus
|
tiny, dense, positive nucleus, surrounded by a charged volume of empty spacethat contains the electrons
|
