Unit 7 Lesson 3: The Periodic Table

Front

What does the #13 stand for?

Back

Atomic Number

Tags

NGSS.MS-PS1-1

Front

What does the #232.04 represent?

Back

Average Atomic Mass

Tags

NGSS.HS-PS1-1

Front

What is the definition of a metal?

Back

An element that is shiny and that conducts heat and electricity well.

Front

What is the definition of a nonmetal?

Back

An element that can be brittle and that conducts heat and electricity poorly.

Front

What is the definition of a metalloid?

Back

An element that has properties of both metals and nonmetals.

Front

Elements in the same ________ on the periodic table had the same number of valence electrons.

Back

Group/Family

Front

Properties of elements within a ________ on the periodic table change in a predictable way from one side of the table to the other.

Back

Period

Front

The number of ________ in an atom determines the identiy of the element.

Back

protons

Front

What is the purpose of the zigzag line on the periodic table?

Back

It separates metals from nonmetals.

Front

What is the significance of the vertical columns on the periodic table?

Back

They are called groups or families and elements in the same group have similar chemical properties.