Shared Flashcard Set

Details

atom
an atom with one of the electrons replaced by some other particle
8
Science
7th Grade
11/10/2010
Click here to study/print these flashcards.

Create your own flash cards! Sign up here.

Additional Science Flashcards

 

 

Cards

Term
Atom
 Definition

an atom with one of the electrons replaced by someother

 particle
Term
energy level
 Definition
The specific amount of energy an electron has
Term
mass number
 Definition

The sum of protons and neutrons in the nucleus 

of an atom
Term
group/family
 Definition

elements in the same vertical cloum of the

periodic table; also called a family
Term
ductile
 Definition
a term used to describe a material that can be pulled out  into a long wire
Term
alkali metal
 Definition
very reative, never found uncombined in nature, shiny and softin pure form.(Lithium, Sodium, Potassium, Chlorine)
Term
actinides
 Definition

the series of radioactive elements that starts 
with actinium andends with lawrencium.

 
Term
halogen
 Definition
very reactive elements that are dangerouse in their uncombined forms. (Florine, Clorine)
Supporting users have an ad free experience!