All matter is made up of _______________?
Atoms
Location of neutrons within an atom
what is in the nucleus
Where are protons located in an atom?
inside the nucleus
Which subatomic particle has very, very, very, little mass?
electron
This is a negatively charged subatomic particle
What is an electron
What are the two locations in an atom?
Nucleus and Electron Cloud
What do we call the three small particles that make up atoms?
subatomic particles
Which two subatomic particles make up the Atomic Mass?
protons and neutrons
Why can't scientists tell the exact location of each electron in the electron cloud?
because they are constantly moving-very fast
An atom is mostly ______________ space?
empty
About how many atoms are in one cell?
100,000,000,000,000 100 trillion