Elements, Compounds, Molecules Review

What is the definition of an element?

• A type of weather phenomenon

• A musical note

• A substance that cannot be broken down into simpler substances by chemical means.

• A type of food ingredient

How are molecules formed?

• By spontaneous generation

• Through the process of photosynthesis

• Through the power of telekinesis

• By the bonding of atoms with electrons

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What is the chemical symbol for Oxygen?

• Ox

• Oxg

• Oxy

• O

What are the parts of a chemical symbol?

• Boiling point, melting point, and conductivity

• Temperature, density, and state

• Color, shape, and size

• Atomic number, atomic mass, element symbol, element name

Chemical bonding in molecules requires ....

• Atoms to share or transfer electrons

• Atoms repel each other due to their positive charges

• Molecules bond through gravitational attraction

• Chemical bonding occurs through the exchange of protons

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What is the chemical symbol for Carbon?

• Co

• Ca

• Cr

• C

A substance with two or more different types of atoms bonded together is called...

• An element

• An atom

• A compound

• A mixture

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This is a one or two letter representation of each element that is generally close to the element's name. The first letter of this will ALWAYS be capitalized.

• chemical symbol

• chemical number

• atomic number

• atomic mass

This is the written out expression for a substance and contains each element in it and the number of atoms for that element.

• chemical formula

• chemical symbol

• The Periodic Table of Elements

• pure substance

Check all that are present in this photo.

• element

• molecule

• compound

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