Subatomic Particles
All matter is made up of _______________?
Atoms
Location of neutrons within an atom
what is in the nucleus
The number of protons for the element Sodium (Na)
What is 11
This is the subatomic particle that determines the identity of an atom.
What is a proton
Where are protons located in an atom?
inside the nucleus
Which subatomic particle has very, very, very, little mass?
electron
The number of protons for the element Carbon (C)
What is 6
Can two elements have the same number of protons?
No
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
The number of protons for the element Neon (Ne)
What is 10
If I could add another proton to Hydrogen, what would happen to it's identity?
wouldn't be Hydrogen anymore, would be Helium
Which two subatomic particles make up the Atomic Mass?
protons and neutrons
The number of protons for the element Calcium (Ca)
What is 20
If you know the number of protons in an atom you can determine what?
atomic number and which element it is/element's identity/name
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
The number of protons for the element Helium (He)
What is 2
How are elements arranged on the period table?
increasing atomic number= number of protons (other trends exist increasing size, increasing atomic mass, etc. but they are arranged by increasing atomic number/number of protons)