Periodic Table of Elements Review

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons found in the nucleus of an atom of that element.

Front

What does the atomic mass of an element represent?

Back

The atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is Iodine's atomic number and atomic mass?

Back

Iodine has an atomic number of 53 and an atomic mass of approximately 126.90447.

Front

What are elements?

Back

Elements are pure substances that cannot be broken down into simpler substances by chemical means.

Front

What are compounds?

Back

Compounds are substances formed when two or more elements chemically bond together.

Tags

NGSS.MS-PS1-1

Front

What is the significance of the Periodic Table of Elements?

Back

The Periodic Table organizes all known elements based on their atomic number, electron configuration, and recurring chemical properties.

Tags

NGSS.HS-PS1-1

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom, contributing to its mass.

Tags

NGSS.MS-PS1-5

Front

What are electrons?

Back

Electrons are negatively charged particles that orbit the nucleus of an atom.

Front

What happens when copper reacts with oxygen?

Back

When copper reacts with oxygen, it forms a new substance, often resulting in a green patina.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5