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;
17 Cards in this Set
- Front
- Back
|
atom
|
a basic chemical element
|
|
|
atomic number
|
the number of protons in the nucleus of an atom
|
|
|
Bohr Diagram
|
Diagram of an element
|
|
|
chemical symbol
|
2 letter to abbreviate an element on a Periodic Table
|
|
|
electron
|
a stable subtomic partical with a charge of a negative electricity
|
|
|
energy level
|
the fixed amount of energy that a system describes
|
|
|
family
|
a group of people united in chemical activaty
|
|
|
isotope
|
two or more forms of the same elements that contains eqal numbers
|
|
|
mass number
|
total of protons & neutrons in a nucleus
|
|
|
mettalloid
|
properties are intermediate between those of metals
|
|
|
metal
|
solid metrial, hard and shiny
|
|
|
neutron
|
paricle of about the same mass
|
|
|
non-metal
|
an element or a substance that is not a metal
|
|
|
nucleus
|
central and most important part of an object
|
|
|
period
|
a set of elements occupying an intire horazontal
|
|
|
Periodic Table
|
table of elements sort by metals, SLG, use in 2 letter symbol
|
|
|
proton
|
a stable subatomic parietal occurring in all atom nuclei
|
