Periodic Table

The elements in groups 3 - 12 are called the ___.

A halogen that is a liquid at room temperature is ___.

group 18 in the periodic table are called the ___.

The smallest unit of an element is a/an

The elements above number 92 on the periodic table are called

A ___ is another name for a family of elements

The synthetic elements start with ___.

The farther right one goes across a row on the periodic table the ___ the elements get.

A man made element is called a ___ element.

The ___ ___ increases as one goes through the periodic table.

The metals and nonmetals are seperated by the ___

Group 17 on the periodic table are called the ___.

The most electronegative element is

Most noble gases are completely harmless except ___ which is highy radioactive.