PARTICLES
This particle has a negative charge.
Electrons
The 2 particles that the same number as the Atomic Number
electrons and protons
Number of elements on Periodic Table
118
an abbreviation for an element
symbol
The symbol is Na
Sodium
These are the 3 particles of an atom
Protons, neutrons, electrons
The formula to find neutrons
Atomic Mass-protons
Discovered the periodic table
Demitri Mendeleev
What does the 2 tell us in H2O
There are 2 hydrogen atoms
Chlorine symbol
Cl
This particle has a positive charge
Proton
protons +neutrons =
Atomic Mass
Elements combine to form
Compounds
Water is a compound or molecule
compound
2 elements that make salt
NaCl/ sodium, chlorine
This particle has a no charge
Neutron
Where Protons and Neutrons are found
center of atom
Helium and Neon are in this family
Noble Gases
Three states of matter
solid, liquid, gas
Symbol for gold
Au
This particle circles around the nucleus of an atom
Electron
Central core of an atom
Nucleus
Nickel and Iron's family name
transition metals
3 chemical properties of an element
Reactivity, flammability and toxicity
Protactinium's atomic number
91