Periodic Table Trends

Front

What are valence electrons?

Back

The number of electrons in the outermost energy shell.

Front

What state of matter are metals mostly in at room temperature?

Back

Solid.

Front

How many valence electrons does phosphorus (P) have?

Back

5.

Front

Which of the following is a metal: Calcium (Ca), Neon (Ne), Oxygen (O), or Sulfur (S)?

Back

Calcium (Ca).

Front

What are the GROUPS or FAMILIES on the periodic table?

Back

The columns that go top to bottom.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the periodic table?

Back

A tabular arrangement of elements organized by increasing atomic number.

Front

What are nonmetals?

Back

Elements that are usually gases or brittle solids and poor conductors of heat and electricity.

Front

What is the significance of the periodic trends?

Back

They help predict the properties of elements based on their position in the periodic table.

Front

What is a metalloid?

Back

An element that has properties of both metals and nonmetals.