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Ionization Energy and Atomic Radius Quiz

14 Questions

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Ionization Energy and Atomic Radius Quiz

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Questions and Answers

Which of the following is NOT a characteristic of atoms?

They have mass

They can be further divided into smaller particles (correct)

They are the smallest unit of an element

They occupy space

In the image of the copper penny, what do the brown spheres represent?

Protons

Oxygen atoms

Neutrons

Copper atoms (correct)

What is the ratio of copper atoms to oxygen atoms in the compound copper(II) oxide?

1:2

2:1

3:1

1:1 (correct)

Which of the following statements about phase changes is NOT true?

The particles themselves change into different elements Signup and view all the answers

Who are the primary contributors to the development of the modern Periodic Table?

Dmitri Ivanovich Mendeleev and Julius Lothar Meyer Signup and view all the answers

What is the primary purpose of a beaker?

To mix, stir, and heat chemicals Signup and view all the answers

What additional equipment is typically used when heating a liquid in a beaker?

Tripod, Bunsen burner, and wire gauze Signup and view all the answers

What is the primary function of a stirring rod?

To stir solutions and transfer liquid Signup and view all the answers

Which of the following is a characteristic of an Erlenmeyer flask?

All of the above Signup and view all the answers

What is the primary purpose of a Florence flask?

To hold liquids and can be easily swirled and heated Signup and view all the answers

What is the key difference between a test tube and a Florence flask?

Test tubes have one end open and the other end closed, while Florence flasks have a round bottom and a long neck Signup and view all the answers

What is the primary purpose of a test tube brush?

To clean and narrow mouth glassware such as cylinders, burettes, and flasks Signup and view all the answers

What is the proper way to handle a test tube containing a substance?

Never point the open end of the test tube at yourself or others Signup and view all the answers

Which of the following laboratory glassware is used to accurately measure the volume of liquids?

Graduated cylinder Signup and view all the answers