Unit 1 Vocabulary (12-27)

Elements that are shiny and conduct heat and electricity well. 

• non metals
• metals
• metalloids
• gases

Poor conductors of heat and electricity

• Metals 
• Nonmetals
• Metalloids
• Periodic table

Elements that have some properties of metals and some properties of nonmetals 

• Metals 
• Nonmetals
• Metalloids 
• Gases

Electrons that are found in the outermost energy level 

• Electrons
• Bonders
• Protons
• Valence Electrons

Vertical column of elements on the Periodic table 

• Period 
• Row
• Group 
• Orbital number 

Horizontal Rows of elements (from left to right) on the periodic table 

• Groups 
• Family
• Valence Electron 
• Period

An interaction that holds atoms or ions together

• group
• reactivity
• chemical bond
• physical bond

The process in which atoms are rearranged to produce new substances. 

• Chemical Reaction 
• Chemical Formula
• Endothermic reaction 
• Exothermic Reaction 

Uses Chemical symbols and numbers to represent a given substance 

• Chemical reactions 
• Chemical Change 
• Chemical Formula
• Physical change 

An expression that uses symbols to show the relationship between the starting substances and the ending substances 

• Chemical Equation
• Chemical Formula 
• Chemcal
• Product