Science 6.4 HW

What group contains the alkali metals? Which element in this group is not an alkali metal?

Group one. Hydrogen.

What term refers to a column in the periodic table of elements?

Group.

What is the name given to the elements in group 17 of the periodic table, such as fluorine and chlorine?

Halogens.

What elements fit between groups 3 and 4 of the periodic table?

Inner transitional metals.

What term refers to a category of elements characterized by being hard, dence, shiny, and good electrical conductors?

Metals.

State the octect rule.

Most atoms tend to react to obtain eight electrons in their valence shell.

Which term refers to the elements that to not combine readily with other elements because they already have eight electrons in their valence shells?

Noble gases.

What are valence electrons?

The electrons in the valence shell.

What does the periodic law state?

When elements are arranged by their increasing atomic numbers, they show regular and repeating, or periodic, properties.