Atoms, Elements, and Compounds Review

Front

What are valence electrons?

Back

Valence electrons are the electrons located in the outermost energy shell of an atom. They are important for chemical bonding.

Front

Which letter represents the valence electrons?

Back

C

Front

What type of electrons are found in the outer energy shell of an atom?

Back

Valence electrons.

Front

What is the charge of neutrons?

Back

Neutrons have a neutral charge.

Front

What is the maximum number of electrons in the 1st energy shell?

Back

The maximum number of electrons in the 1st energy shell is 2.

Front

What is the maximum number of electrons in the outermost energy shell?

Back

The maximum number of electrons in the outermost energy shell is 8.

Front

Define an atom.

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a compound?

Back

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

Tags

NGSS.MS-PS1-1

Front

What are protons?

Back

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