periodic table

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• number of isotopes

The alkali metals have how many valence electrons?

• 1
• 2
• 7
• 8

The noble gases have how many valence electrons?

• 1
• 2
• 7
• 8

Elements which are shiny, conduct electricity and heat are called

• metal
• nonmetal
• metalloid
• nonexistent

The blue atoms are called 

• metals
• nonmetals
• metalloids
• noble gases

The atomic number tells you what?

• number of electrons
• number of protons
• number of neutrons
• both electrons and protons in an atom.

All the elements on the right side of the periodic table are called..

• Metals
• Metalloid
• Nonmetals

How many Valance electrons does Iodine Have?

• 6
• 16
• 7
• 17

What is the name of the group that never reacts--ever ever they are stable with a full outermost ring!!!

• noble gases
• transition
• halogens
• borons

What is the atomic mass of Neon?

• 10
• 20.18
• 10.18
• 20.18