unit two atom

Mere som dette

properties of matter and changes of matter

af Evans Alivia

The Biggest Questions In Metaphysics

af Charles Liu

Tree organigram

af Jami Muse

Evolution of the Atom By: Kevin Do

af Kevin Do

What is an atom?

Subatomic Particles

Electron

found outside nucleus (electron cloud)

-1 charge

almost 0 mass

neutral atom if number of protons is equal to electrons

Neutron

separates protons

0 charge

same mass a proton

= to protons + electrons

Proton

attracted to electron

atomic number = number of protons

same mass as neutron

+1 charge

found in nucleus

Smallest particle of an element that possesses the properties of the element

elements are made of atoms

Everything is made of atoms

fundamental building block of matter