The basic unit of a chemicl element is a(n)

• molecule

• atom

• electron

• neutron

The ___ is the center of the atom.

A chemical substance that cannot be broen down into a simpler substance and keep the same properties is a(n)

• atom

• electron

• element

• proton

Tags

NGSS.MS-PS1-5

Draw a circle around the nucleus of the atom.

Tags

NGSS.MS-PS1-1

What formula is used to find the atomic mass of an element? Write a math problem to show your answer.

The area in an atom where you will find electrons.

• electron cloud

• nucleus

• protons

• electrons are not part of an atom!

Elements are organized into a ______ ______ for use student use.

This subatomic particle has a positive charge.

• neutron

• proton

• electon

• nucleus

An electron has a ____ charge.

• negative

• postive

• neutral

• no charge

Tags

NGSS.MS-PS2-3

This subatomic particle is the SMALLEST of all of them.

• proton

• neutron

• electron

• Jimmy Neutron