Center of an atom. Most mass
What is nucleus?
The smallest piece of an element that still represents that element
What is an atom?
Chart of elements arranged by their physical and chemical properties
What is the periodic table?
Category of elements that are kind of like metals and nonmetals
What are metalloids?
elements with no metallic properties
nonmetal
Atomic particle with a positive charge
What is proton?
Sum of protons and neutrons
What is the atomic mass?
Columns of the periodic table
What are groups?
Element that is shiny, bendable, and conducts heat and electricity
What is a metal?
ability to reflect light (Shiny)
luster
Where electrons are most likely located
What is the electron cloud?
Number of protons is described as the...
What is the atomic number?
Rows of the periodic table
What is a period?
Element that conducts electricity at high temps but not low temps
semi conductor
man made elements
synthetic
Atomic particle with a negative charge
What is an electron?
Elements that give off radiation
What is radioactive?
Letter(s) used as an abbreviation for the name of an element
What is atomic symbol?
Ability to be pulled into wires
ductility
man who came up with the periodic table
mendeleev
Atomic particle with no charge
What is a neutron?
Atom that is not neutral because it has gained or lost an electron
What is an ion?
metals are split into 3 types
alkali, alkaline earth, transition
ability to be hammered into sheets
malleability