Review #2 - Final

what is the small group of elements called that include C,N,O

• metals

• nonmetals

• metaloids

• noble gases

Who first developed the Periodic Table?

• Mendeleev
• Mosely
• Mendella
• Murphy

COPPER

• C
• Ca
• Cu
• Cl

SODIUM

• S
• So
• N
• Na

Elements which are shiny, conduct electricity and heat are called

• metal
• nonmetal
• metalloid
• nonexistent

A proton is....

• A negatively charged subatomic particle
• A positively charged subatomic particle
• A neutrally charged subatomic particle
• The only subatomic particle located in the nucleus

What determines the order of elements on today's periodic table?

• increasing atomic mass

• decreasing atomic mass

• increasing atomic number

• decreasing atomic number

A horizontal row of elements in the periodic table.

• column
• group
• period

Elements in a ..................have similar chemical properties.  

• period
• group
• row

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons