Unit 2 Vocab

The basic unit of a chemical element

• Elements

• Atoms

• Cells

• Matter

Tags

NGSS.MS-PS1-1

The positively charged central core of an atom

• Atom

• Electron Cloud

• Nucleus

• Neutron

 The system of electrons surround the nuclear of an atom.

• Atom

• Electron Cloud

• Nucleus

• Neutron

Tags

NGSS.MS-PS1-1

a representation of an idea, object or process that cannot be experienced directly.

• Textbook

• Structure

• Diagram

• Model

Tags

NGSS.MS-PS1-4

NGSS.MS-ESS2-1

NGSS.MS-LS1-2

NGSS.MS-PS4-2

A structural model of an atom created by Niels Bohr in 1913; this model shows the electrons traveling around the nucleus of an atom in different levels of circular orbits known as shells.

• Bohr Model

• Lewis Dot Structure

• Plum Pudding Model

Also known as an electron dot structure is a model of an atom represented by the atoms Atomic Symbol and dots for each of the elements valance electrons.

• Bohr Model

• Lewis Dot Structure

• Plum Pudding Model

The columns on the periodic table.

• Groups

• Periods

• Elements

• Subatomic

The rows on the periodic table

• Groups

• Periods

• Elements

• Subatomic

a substance that cannot be broken down into a simpler substance. The fundamental material that all matter is made of.

• Groups

• Periods

• Elements

• Subatomic

Smaller than or occurring within an atom.

• Groups

• Periods

• Elements

• Subatomic

Tags

NGSS.MS-PS1-1