Periodic Table of Elements

Elements within the same _____________ are most likely to undergo the same kinds of reactions.

Be, Mg, and Ca are all in this group.

Mendeleev made the first periodic table, arranging the elements by their?

How many periods are on the Periodic Table of Elements?

Which element has the larger atom? Lithium or Sodium?

What is a horizontal row called on the Periodic Table?

As you go down the periodic table the atomic size?

The usefulness of Mendeleev's periodic table was confirmed by

What is the vertical column on the Periodic Table called?

The periodic table of elements is arranged in order of __________________ .

As you  go across a period the atomic size?

The standard that was used to invent the atomic mass unit AMU was the mass of the

An atom with a charge is called an_______________.

Chlorine and Iodine are members of which family on the periodic table?

The family of atoms with chlorine and fluorine is called the ___________________ .

What is another name for a family on the Periodic Table?

Helium is most like which of these elements?

The subatomic particle located outside the nucleus is called the ______________.