Organizing the Elements

During a lively classroom debate, Lily confidently claimed that Mendeleev arranged his periodic table in order of increasing atomic number. Was she correct?

• TRUE

• FALSE

Grace and Ethan are having a friendly debate in science class. Grace says the rows in the periodic table are called periods. Is she correct?

• FALSE

• TRUE

Imagine you're on a journey across the periodic table with Anika and Noah. As you move from left to right, do you first encounter metals, then gases, and finally nonmetals?

• TRUE

• FALSE

Hey Priya, did you know that another name for a period in the periodic table is a family? What do you think?

• FALSE

• TRUE

Rohan and Lily are exploring the periodic table. They notice something interesting: elements in the same column seem to share some magical properties! Can you guess if this is true?

• TRUE

• FALSE

Hey science explorers! Can you guess what an element's __________ can be predicted from its location on the periodic table? Join Oliver, Benjamin, and Ava in this fun challenge!

• color

• properties

• density

Hey science whizzes! Olivia and Luna are having a debate. Can you help them out? What do you call the average mass of all the isotopes of an element? It's a real brain teaser!

• atomic mass

• atomic number

• density

Hey science enthusiasts! Henry and Noah are having a debate. Can you help them out? The modern periodic table is arranged in order of increasing __________. What do you think?

• atomic mass

• atomic number

• atomic weight

Hey science explorers! Aria and Sophia are diving into the periodic table. Can you help them find out what information is listed for each element, including its atomic number, __________, name, and atomic mass?

• chemical symbol

• density

• radioactivity

In a thrilling race across the periodic table, an element with atomic number 10 zooms to the __________ of an element with atomic number 9. Can you guess its position? Join Abigail, Sophia, and Mia in this elemental adventure!

• left

• right

• below