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;
7 Cards in this Set
- Front
- Back
|
Nucleus
|
the dense, positively charges mass located in the center of an atom
|
|
|
Proton
|
a positively chrarged subatomatic particle that is found in the nucleus of an atom
|
|
|
Electron
|
a negativly charged subatomic particle that is found in in the nucleus of an atom
|
|
|
Neutron
|
a neutral subatomic particle that is found in the space outside the nucleus of an atom
|
|
|
Atomic Number
|
a unique number for each element that equals the number of the protons in an atom of that element
|
|
|
Mass Number
|
the sum of protons and neutrons in the nucleus of an atom
|
|
|
Isotopes
|
atoms of a given element that have different numbers of neutrons in the nucleus and different mass numbers
|
