Advertisement Upgrade to remove ads

Element

any material that cannot be broken down into simpler substances

Metal

Elements share common properties. an element that is shiny and conducts heat and electricity well

Atom

the smallest component of an element having the chemical properties of the element

Nucleus

The center of an Atom

Proton

positively charged particle of an atom

Atomic number

the number of protons in an atom

Neutron

particle with no charge

Electron

particle with a negative charge

Atomic mass

total mass of the protons and neutrons in an atom, measured in atomic mass units

Molecule

a combination of two or more atoms

Periodic table

an arrangement of elements in which the elements are separated into groups based on a set of repeating properties

Metalloids

elements with properties that fall between those of metals and nonmetals

Nonmetals

Elements that are dell, poor conductors and brittle

Properties of elements

State of matter at room temp, metals, NonmetalsElements or metallics, the way they combine with other metals

Most elements are this at room temp

Solid

Chemically reactive

More likely to combine with other elements to form a new substance

Chemical formula

A way of describing molecules using letters and numbers

CO2

Carbon dioxide

Top row of periodic table

Lanthanides

Bottom row of elements

Actinides

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set