Atoms and Elements Quiz

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

Questions and Answers

What defines a pure substance as an element?

  • It is made of only one type of atom. (correct)
  • It consists of multiple types of atoms.
  • It can be either a liquid or solid.
  • It can be broken down into simpler substances.

What is the key difference between monoatomic and diatomic molecules?

  • Monoatomic molecules are less stable than diatomic molecules.
  • Monoatomic molecules consist of one type of atom, while diatomic molecules have two different types.
  • Monoatomic molecules are always gases, while diatomic molecules are always solids.
  • Monoatomic molecules contain a single atom, while diatomic molecules consist of two atoms. (correct)

Which statement accurately describes the periodic table?

  • It organizes elements according to the size of their atoms and number of protons. (correct)
  • It only includes naturally occurring elements.
  • It provides a complete list of all known substances.
  • It arranges elements based on the mass of the atoms only.

Which of the following is NOT a characteristic of metals?

<p>Usually gas at room temperature. (C)</p> Signup and view all the answers

How many naturally occurring elements are there?

<p>Approximately 90. (A)</p> Signup and view all the answers

Which property differentiates non-metals from metals?

<p>Non-metals are generally less malleable than metals. (D)</p> Signup and view all the answers

What is the atomic structure basis used in the periodic table?

<p>The atomic number. (C)</p> Signup and view all the answers

What information does the mass number of an element indicate?

<p>The sum of protons and neutrons in an atom. (B)</p> Signup and view all the answers

Flashcards

Element

A pure substance made of only one type of atom.

Monoatomic

Consisting of a single atom.

Diatomic

A molecule made of two atoms.

Periodic Table

A table that organizes elements based on their atomic size.

Signup and view all the flashcards

Atomic Number

The number of protons in an atom.

Signup and view all the flashcards

Mass Number

The sum of protons and neutrons in an atom.

Signup and view all the flashcards

Metal

Usually solid at room temperature, good conductors of heat and electricity, ductile, malleable, and shiny.

Signup and view all the flashcards

Nonmetal

Mostly gases at room temperature, poor conductors of heat and electricity, brittle, and often dull.

Signup and view all the flashcards

Study Notes

Atoms and Elements

  • Atoms are the smallest particles of matter. They cannot be broken down further or created or destroyed.
  • Elements are pure substances made of only one type of atom.
  • There are approximately 90 naturally occurring elements and about 20 others created artificially.
  • Elements are arranged in the Periodic Table based on the size of their atoms.

Success Criteria

  • Students should be able to define elements, monatomic, diatomic, and the periodic table.
  • Describe the key features of the perioidic table, including periods, and groups.
  • List the first 20 elements of the periodic table.
  • Relate the atomic number and mass number of an element to the number of subatomic particles.

Parts of an Atom

  • Atoms have subatomic particles: protons, neutrons, and electrons.
  • Protons have a positive electrical charge.
  • Neutrons are neutral (no charge).
  • Electrons have a negative electrical charge.
  • Protons and neutrons are located in the nucleus.
  • Electrons orbit the nucleus.

Molecules

  • A molecule is a group of two or more atoms bonded together.

Monoatomic vs Diatomic

  • A monoatomic element consists of a single atom.
  • A diatomic element is a molecule made from two atoms.

Periodic Table

  • The periodic table organizes elements based on the size of their atoms.
  • Elements are represented by their symbols.
  • The table shows elements grouped into metals and non-metals.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

More Like This

Use Quizgecko on...
Browser
Browser