unit two atom

Honelako gehiago

7GH Revision

by Chiara Wahsono

The Modern View of Matter

by Chris Shaw

Phrasal verbs and multi-word verbs

by Samantha Anchondo

Development of the Atom By: Cindy Nguyen

by Cindy Nguyen

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