These three subatomic particles make up an atom
Proton, Neutron, & Electron
Where you find Valence Electrons
The outermost Shell
The chemical symbol for oxygen
O
The two elements that make up water
Hydrogen and Oxygen
Smallest unit of an element
Atom
This subatomic particle has a negative charge
Electron
The max number of electrons in the second or third outermost shell
Eight
The chemical symbol for carbon
C
The gas humans breathe to help cells release energy
Oxygen
Two or more atoms chemically bonded
Molecule
Is where protons and neutrons are located
Nucleus
The max number of electrons in the first shell
The number of protons in its atoms
Two elements that make up table salt
Sodium and Chlorine (NaCl)
Number of Hydrogen atoms in H2O
2
Has about the same weight as a Proton.
Neutron
Number of Valence Electrons of Oxygen (O)
Six Electrons
Has the atomic number 1

True or False: The atoms in wood are destroyed when it's burned.
False, a chemical reaction formed new molecules from the atoms.
Number of atoms in Glucose (C6H12O6)
24
The name for the red dots in this Diagram
Valence Electrons
The number of Valence Electrons of Helium (He)
An element with 11 Protons.
The reason coal and diamonds are different substances even though they both Carbon.
They have a different molecular structure.
Describe how H2O and H2O2 are different substances
They have different molecular structures even if they have the same atoms.