Periodic table - Structure and element

The purpose of the slides is for learning.


You can go back and look at the previous slides if you do not know the answer to a question asked

Multiple Choice

Which of the following best describes the significance of grouping elements in the periodic table?

• It helps predict chemical properties and behaviors.

• It makes the table look more organized.

• It shows the atomic number of each element.

• It allows for easier memorization of element names.

Multiple Choice

What is the difference between periods and groups in the periodic table?

• Periods are vertical columns and groups are horizontal rows.

• Periods are horizontal rows and groups are vertical columns.

• Both periods and groups are horizontal rows.

• Both periods and groups are vertical columns.

Hotspot

Which group has 2 valence electrons?

Open Ended

Explain how the number of valence electrons is determined for main group elements using the periodic table.

Multiple Select

Select all correct statements about the classes of elements in the periodic table.

• Metals are found on the left side of the periodic table.

• Nonmetals are found on the right side of the periodic table.

• Metalloids are found in the middle of the periodic table.

• Metals are poor conductors of electricity.

Multiple Choice

Which of the following statements about metals is correct?

• Metals have many valence electrons and gain electrons easily.

• Metals have few valence electrons and lose electrons readily.

• Metals are poor conductors of heat and electricity.

• Metals form negative ions (anions).

Multiple Choice

One physical characteristic of metals is...

• Luster (shine)
• Form anions

• Break easily

• Do not conduct electricity

Multiple Select

Referring to the image, which statement below are correct?

• The element to left is lithium because it has 3 total electrons but 1 is a valence electron

• The element to left is lithium because it has 1 total electrons but 3 is a valence electron

• The element to right is beryllium because it has 4 total electrons but 2 are valence electrons

• The element to right is beryllium because it has 2 total electrons but 4 are valence electrons

Multiple Choice

Which group in the periodic table contains alkali metals?

• Group 1

• Group 2

• Group 3

• Group 4

Multiple Select

Which of the following are properties of alkali metals?

• Soft

• Silvery in color

• Have two valence electrons

• Most reactive group of metals

Open Ended

Compare the reactivity of alkali metals and alkaline earth metals. Which group is more reactive?

Multiple Choice

Which elements are classified as transition metals in the periodic table?

• Scandium, Titanium, Iron

• Lithium, Sodium, Potassium

• Beryllium, Magnesium, Calcium

• Cerium, Praseodymium, Neodymium

Open Ended

List two chemical properties and two physical properties of nonmetals.

Multiple Choice

Compare the reactivity of halogens and noble gases and answer the question below

• Both the halogens and noble gases are metals with the halogens being more reactive

• Both the halogens and noble gases are nonmetals with the noble gases being more reactive

• Both the halogens and noble gases are nonmetals with the halogens being more reactive

• Both the halogens and noble gases are metals with the noble gases being more reactive

Multiple Choice

Which group of nonmetals is the most reactive and why?

• Halogens, because they have 7 valence electrons

• Noble gases, because they have a full valence shell

• Metalloids, because they have properties of both metals and nonmetals

• Alkali metals, because they have 1 valence electron

Open Ended

Explain how the chemical and physical properties of metalloids make them useful in technology.

Multiple Choice

Which of the following elements are classified as metalloids?

• Silicon, Germanium, Arsenic, Antimony

• Oxygen, Nitrogen, Fluorine, Neon

• Sodium, Magnesium, Aluminum, Calcium

• Chlorine, Bromine, Iodine, Helium

Multiple Choice

What about element #17? Metal, nonmetal, or metalloid?

• Metal

• Nonmetal

• Metalloid

• Transition metal

Multiple Choice

Which element belongs to Group 18 and is classified as a noble gas?

• Krypton

• Iodine

• Radium

• Argon

Multiple Choice

Would you like to learn more about how elements are grouped in the periodic table or how their properties differ across classes?

• Yes, I want to learn more about element groups.

• Yes, I want to learn more about element properties.

• No, I feel confident about my understanding.

• I have other questions.

Open Ended

Reflecting on today's lesson about periodic structure and element classes, what is one thing you learned that surprised you or changed your understanding of the periodic table?

Open Ended

Compare the properties of the elements highlighted in images 1, 2, and 3. How do their group classifications influence their chemical behavior?