Atoms Flashcards
What are atoms
An atom is the basic unit of matter that carries the unique characteristics of a chemical element
What charge does protons have?
+1
What charge do neutrons have?
0
What charge do electrons have?
-1
What is the mass of a proton
1
What is the mass of a neutron
1
what is the mass of an electron
0
Where is the location of a proton
nucleus
where is the location of a neutron
nucleus
where is the location of an electron
orbital
how can the number of protons be found?
through the atomic number
example: Carbon 6, # of proton = 6
how can the number of electrons be found?
through the number of protons
how can the number of neutrons be found?
by subtracting the mass number from the atomic number
what is an element
Any material that is composed of only on type of atom
what are the first 20 elements of the periodic table
Hydrogen H
Helium He
Lithium Li
Beryllium Be
Boron B
Carbon C
Nitrogen N
Oxygen O
Fluorine F
Neon Ne
Sodium Na
Magnesium Mg
Aluminium Al
Silicon Si
Phosphorus P
Sulphur S
Chlorine Cl
Argon Ar
Potassium K
Calcium Ca