Periodic Table Review

What are the metals in Group 1 (or 1A) collectively known as?

• Alkaline earth metals

• Alkali metals

• Noble gases

• Sodium and friends

In the 1820s, J.W. Dobereiner tried to organize elements into small groups called

• duos

• triads

• quattros

• mini elementals

How many periods are there on the modern periodic table

• 6

• 7

• 9

• 18

Group 17 (7A) elements are known as

• the Shallow Jens

• Noble gases

• Halo III for Xbox 360

• the halogens

Who is the Russian scientist who came up with a more systematic way of organizing the elements?

• Albert Einstein

• John Dalton

• Mr. Lisk

• Dmitri Mendeleev

True or False: Atomic radius/size increases as you go down a group.

• TRUE

• FALSE

True or False: Electron Shielding Effect INCREASES as you go across a period

• TRUE

• FALSE

• electrons have shields?

• omg I'm gonna fail.

In what way did Mendeleev arrange the known elements?

• By increasing atomic mass

• By increasing atomic number

• By increasing ionization energy

• alphabetical order

Positive ions are also known as

• dogions

• cats

• cations

• anions

Anions are typically formed by which type of elements?

• Metals

• Nonmetals

• Metalloids

• Earth, Wind, and Fire