CI Review (Physical Science)

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What is the atomic mass of phosphorus?

Back

The atomic mass of phosphorus is approximately 31.

Front

How do you calculate the number of neutrons in an atom?

Back

Number of neutrons = Atomic mass - Atomic number.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together.

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NGSS.MS-PS1-1

Front

What evidence indicates a substance is a compound?

Back

It consists of multiple elements chemically bonded together.

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NGSS.MS-PS1-1

Front

What happens to mass during a chemical reaction?

Back

Mass is conserved, but it can change forms, such as being released as gas.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the law of conservation of mass?

Back

The law states that mass cannot be created or destroyed in a chemical reaction.

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NGSS.MS-PS1-5

Front

What are similar chemical properties?

Back

Elements in the same group of the periodic table share similar chemical properties.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded.

Front

What is a chemical reaction?

Back

A process where substances (reactants) are transformed into different substances (products).

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number and properties.