unit two atom

Mere som dette

molecules and ions

af chua sonya

Cell Respiration

af Kaley Freund

Classification of Matter

af Morgan Berns

pure substances and mixtures by Aaliyah Larissa Vanessa

af Robertson Aaliyah

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