Periodic table

How did Mendeleev arrange the elements?

• alphabetical 
• density
• melting point
• atomic mass

what is the big group of metals called found within the metals

• transition metals

• nonmetals

• noble gases

• halogens

a grouping of elements based on similar properties, arranged by columns in the periodic table; also known as a group

• family

• period

• row

• isotope

Atoms with similar properties are most likely located...

• in the same period.
• in the same group.
• in different periods.
• to the right and left of each other.

The distance between nucleus and outermost shell occupied electron

• Atomic Radii

• Ionization Energy

• Electronegativity

• Electron Afinity

• Oxidation Number

The tendency of an atom to attract an electron

• Atomic Radii

• Ionization Energy

• Electronegativity

• Electron Afinity

• Oxidation Number

Which elements have the most similar chemical properties?

• K and Na
• K and Ca
• K and Cl
• K and S

Which properties are characteristic of the Group 1 metals?

• high reactivity and unstable elements

• low reactivity and the formation of unstable compounds
• high reactivity and found often alone in nature

• low reactivity and the formation of stable compounds

The elements in this family are soft, silvery, and very reactive with water.

• Alkaline Earth Metals

• Alkali Metals

• Transition Metals

• Lanthanides

Which element is similar to Mg?

• Ca

• B

• O

• Cl