Parts of an atom
Smallest part of all matter
Atoms
Where are protons, electrons, and neutrons found in at atom
Protons and neutrons are found in the nucleus of the atom
Electrons are found in the in the elctron cloud or on the outside of an atom
What is the chart where all of the elements can be found?
The periodic table
Explain how a covalent bond is formed
Formed when two atoms share one or more pairs of electrons
How many valence electrons are needed to make an atom become stable
8
A paricle with one negative charge
Electron
How are protons, electrons, and neutrons different to each other when it comes to charge
Protons have a positive charge
Electrons have a negative charge
Neutrons have no charge
What are the most stable elements known to man on the periodic table?
The Noble Gases
Explain how ionic bonds are formed
When ions attract each other and for a stable ionic compound. Elements will give and receive electrons from other elements to become stable
82
A particle with a postive charge
Proton
How do you find the number of protons and electrons in an atom
Simply look at the atomic number on the periodic table.
What do the groups on the periodic table tell us about an element
The group number tells us how many valence electrons can be found in the outter shell of an element
What is a metallic bond?
a bond formed when many metal atoms share their pooled valence electrons
What is the atomic mass of Potassium?
39.10
A neutral particle that exists in the nucleus of an atom
neutron
How do you fine the number of neutrons of an atom
Round the atomic mass to the nearest number. Then subtract that number by the atomic number
What does the period number on the periodic table tell us?
How many electron shells each element has
What element makes an ionic bond to form salt
Sodium Chlorine
How many neutrons are in Strotium?
50
The center part of an atom
Nucleus
What is the difference between ions and isotopes?
Isotopes are when the same element have different numbers of neutrons
Ions are atoms that no longer neutral because they either gained or lost an electron
Tell me the number of valence electrons and how many electron rings Sulfur has
Sulfer has 3 electron rings and 6 valence elections
What element matches nicely with Flourine to make both elements stable
Lithium
Tell me the atomic number, atomic mass, # of neutrons, #of valence electrons, and number of electron rings for calcium
20,40.08, 20 neutrons, 2 valence electrons, 4 electron rings