Conceptual 3 Element Compound Mixtures PNE

Atomic Theory was proposed by:

matter with the same composition throughout

matter cannot be created or destroyed

The central core of an atom is the:

Stainless steel

mixture you cannot see different parts

two or more elements combined

Who discovered the neutron?

This has a positive charge

atoms of the same element with different number of neutrons

This does not carry a charge

Who discovered the nucleus?

Who discovered the electron?

Garden Salad: Homo or Hetero?

anything that has mass and occupies space

Salad dressing with oil and vinegar.

element or compound?  Si

element or compound?  H₂O

Homo or Hetero? Air

element or compound?  FeO

Oatmeal Cookies:  Homo or hetero

This tells the number of protons in a nucleus

The number of protons and neutrons in an atom

Who came up with "atomos"

Salt dissolved in water:  Homo or hetero?

element or compound?  C₆H₁₂O₆

This has a negative charge

tells us what elements are present and how many atoms there are

mixture you can see different parts

element or compound? Sn

wieghted average of isotopes

element or compound? NaCl

matter made of only one type of atom:

The elctrons are located in the :