Intro to the Periodic Table
Classifying the Elements
Periodic Trends
Ions
Ionic and Covalent
100

What kind of properties did early chemists use to sort the elements into groups?

Fire, Earth, Air and Water

100

What does the periodic table usually display in the boxes for each of the elements?

The symbols, names, and information about the structure of their atoms

100

What is an ion?

An atom or group of atoms that has a positive or negative charge

100

What are valence electrons?

The electrons in the highest occupied energy level of an element's atoms

100

What is an ionic compound?

A compound composed of Metals and Nonmetals

200

How did Mendeleev arrange the elements in his periodic table?

In order of the increasing atomic mass

200

What are the elements called in Group 1A?

Alkali metals

200

How are positive and negative ions formed?

When electrons transfer between atoms

200

How did you find the number of valence electrons in an atom?

By looking at the group number

200

What are Covalent bonds?

Bonds between two Nonmetals

300

How are the elements arranged in the modern periodic table?

In order of the increasing atomic number

300

What are the elements in Group 2A called?

Alkaline Earth Metals

300

What is a cation?

An ion with a positive charge 

300

What are electron dot structures?

Diagrams that show the arrangement of valence electrons in the atoms of an element as dots

300

What does a chemical formula show?

The number of atoms in each element in the smallest unit of a substance

400

What are the three classes of elements?

Metals, metalloids, and nonmetals

400

What are the nonmetals in Group 7A called?

Halogens

400

What is an anion?

An ion with a negative charge

400

How many Valence Electrons does an element want?

A set of eight

400

What type of prefixes do we use to name covalent compounds?

Greek

500

What does the IUPAC stand for?

The International Union of Pure and Applied Chemistry

500

What are the elements in Group 8A called?

Noble gases

500

The energy required to remove an electron from an atom is called.....

Ionization Energy

500

How is a cation produced?

When an atom loses one or more valence electrons

500

What does the second element in an Ionic compound end in?

Ide

M
e
n
u