Periodic Table Review 8th Grade

Fluorine has ______ valence electrons.

These metals have 2 valence electrons.

Reactivity of an element is due to its

Which of the following is a metalloid?

Which of the following are all nonmetals?

Which element would react most like sulfur?

A horizontal row on the periodic table is called a

How did Mendeleev arrange the elements?

Elements lying along the zig zag line on the periodic table are

The most reactive group of non-metals is

Helium has 8 valence electrons.

As you move down the table in group 1, metallic properties

What are most of the elements in the periodic table?

Which of the following elements has atomic number 19?

The most reactive metals are in ________.