Lesson 3: Periodic Table

​Directions: Take notes as you work through the presentation on page 7 of your packet

Multiple Choice

Which of the following can you do using the periodic table?

• Identify the group and period number of an element

• Predict the weather

• Find the boiling point of water

• Calculate the speed of light

Multiple Choice

Which scientist is credited with the first widely recognized arrangement of the periodic table, and what was the main criterion for his arrangement?

• Dmitri Mendeleev, arranged by increasing atomic mass

• John Dalton, arranged by atomic number

• Marie Curie, arranged by radioactivity

• Ernest Rutherford, arranged by electron configuration

Multiple Choice

How many protons are in this element?

• 79
• 196
• 117
• Cannot be determined

Multiple Choice

Which of the following statements about valence electrons is correct?

• Valence electrons determine the atom's reactivity.

• Valence electrons are found in the nucleus.

• All elements have the same number of valence electrons.

• Valence electrons are always paired.

Multiple Select

Select all correct statements about the modern periodic table:

• Elements are arranged by increasing atomic number.

• Each row is called a period.

• Each column is called a group or family.

• Elements are arranged by increasing atomic mass.

Multiple Choice

Which region of the periodic table contains elements that are soft, silvery, and conduct electricity?

• Alkali Metals

• Transition Metals

• Halogens

• Noble Gases

​Sodium Reacting in Water

​A very LARGE chunk of sodium reacting in water

Multiple Choice

When alkali metals react with water, what are two observable outcomes?

• Explosion and tarnishing

• Color change and melting

• Rusting and bubbling

• Condensation and freezing

Multiple Choice

Which of the following is NOT a physical property of transition metals?

• Low density

• High density

• Magnetic

• High melting point

Multiple Choice

Which of the following is a physical property of metalloids?

• They are semiconductors

• They form acids with hydrogen

• They are colorless

• They are radioactive

Multiple Select

Which of the following are chemical properties of halogens?

• Form salts

• Exist as diatomic molecules

• Conduct electricity

• Form acids with hydrogen

Multiple Choice

Why is hydrogen place in group 1?

• It is a gas like Alkali Metals

• It only has 1 electron

• It behaves like a Noble Gas

• It only has 1 proton

Multiple Choice

Which of the following is NOT a success criterion for learning about the periodic table as listed in the lesson?

• I can list all the group names of the periodic table

• I can identify the charge of the ion and the number of valence electrons

• I can memorize the atomic mass of every element

• I can compare the reactivity of elements based on their location on the periodic table