8th grade Using the periodic table

Periodic table

100

What is the main purpose of the Periodic Table?

A. To organize compounds

B. To classify elements by atomic number and properties

C. To show atomic mass

D. To list chemical reactions

B. To classify elements by atomic number and properties

200

2. Why do elements in Group 1 react very easily with other elements?
   A. They have many valence electrons
   B. They have only one valence electron, which they easily lose
   C. They are noble gases
   D. They are metalloids

B. They have only one valence electron, which they easily lose

300

2. Which of the following elements is a metal?
   A. Helium
   B. Oxygen
   C. Aluminum
   D. Sulfur

C. Aluminum

400

2. What is the atomic number of an element with 8 protons?
   A. 8
   B. 16
   C. 18
   D. 80

A. 8

500

What is the significance of periods on the Periodic Table?
A. They indicate the number of valence electrons
B. They indicate the number of electron shells
C. They organize elements by atomic mass
D. They classify elements by their reactivity

B. They indicate the number of electron shells

Non Metal and Metalliod

100

2. Which of the following is a metalloid?
   A. Silicon
   B. Oxygen
   C. Carbon
   D. Gold

A. Silicon

200

What are elements in Group 18 known for?
A. Being highly reactive
B. Being metals
C. Being noble gases and non-reactive
D. Being metalloids

C. Being noble gases and non-reactive

300

2. Which of the following is a property of nonmetals?
   A. Good conductor of electricity
   B. Shiny
   C. Dull and brittle
   D. Malleable

C. Dull and brittle

400

2. Which of the following elements is a nonmetal?
   A. Magnesium
   B. Chlorine
   C. Iron
   D. Sodium

B. Chlorine

500

2. Which of the following is NOT a property of metals?
   A. Good conductor of heat
   B. Shiny
   C. Brittle
   D. Malleable

C. Brittle

Elements

100

What do elements in the same group have in common?
A. The same atomic mass
B. The same chemical symbol
C. The same number of valence electrons
D. The same state of matter

C. The same number of valence electrons

200

2. What information is typically found in an element’s key on the Periodic Table?
   A. Atomic number, atomic mass, element symbol
   B. Atomic mass, color, element symbol
   C. Element name, atomic mass, state of matter
   D. Atomic number, number of protons, atomic mass

A. Atomic number, atomic mass, element symbol

300

What does the atomic mass of an element represent?
A. The total number of protons and neutrons in the nucleus
B. The number of electrons in the atom
C. The number of energy levels in an atom
D. The atomic number of an element

A. The total number of protons and neutrons in the nucleus

400

How did Dmitri Mendeleev arrange the elements in his first periodic table?
A. By increasing atomic mass
B. By increasing atomic number
C. By chemical reactivity

A. By increasing atomic mass

500

2. Elements in the same group on the Periodic Table have the same number of:
   A. Protons
   B. Electrons
   C. Valence electrons
   D. Neutrons

C. Valence electrons

Vocab and facts

100

2. What are the two main types of elements on the Periodic Table?
   A. Metals and gases
   B. Metals and nonmetals
   C. Metalloids and liquids
   D. Solids and liquids

B. Metals and nonmetals

200

Group...................

A vertical column on the Periodic Table, representing elements with the same number of valence electrons.

300

Atomic Number...............

The number of protons in the nucleus of an atom, determining the element's identity.

400

1. What is a characteristic of a stable atom?
   A. It has a high atomic number
   B. It has a balanced number of protons and electrons
   C. It does not undergo radioactive decay
   D. It has a high mass number

C. It does not undergo radioactive decay

500

2. What does a group on the Periodic Table represent?
   A. A horizontal row
   B. A vertical column
   C. A repeating chemical pattern
   D. A list of isotopes

B. A vertical column

Vocab

100

Periodic table.......................

A chart that organizes elements by increasing atomic number and groups elements with similar chemical properties.

200

Period.....................

A horizontal row on the Periodic Table, representing the number of electron shells in an atom.

300

Atomic Mass..............

The weighted average mass of an atom's isotopes.

400

Metal....................

An element that is typically shiny, malleable, and a good conductor of electricity and heat.

500

Nonmetal...............

An element that is typically brittle, lacks luster, and is a poor conductor of electricity and heat.