Periodic Table
Use this to determine how many protons and electrons there are in an element.
What is the atomic number?
This is a combination of two or more elements that are NOT bonded together through a chemical reaction.
What is a mixture?
What is covalent bonding?
This has a charge of -1, lives outside of the nucleus of an atom, and barely weighs anything at all.
What is an electron?
This is what happens when you put two opposite charges together.
What is they attract?
What is the atomic mass?
This is a combination of two or more elements that are bonded together through a chemical reaction.
What is a compound?
This is what happens when one atom provides an electron or electrons to another atom or atoms creating ions.
What is ionic bonding?
This lives inside the nucleus of an atom, weighs 1 amu, is responsible for the name of the element, and is determined by the atomic number.
What is a proton?
What is they repel?
The Alkali Metals (leftmost column on the periodic table) have this many valence electrons.
What is 1 valence electron?
This is how many atoms of each element there are within a molecule.
What is a molecule's atomicity? or What is an molecule's formula?
In this model, scientists only use the element symbol and the valence electrons.
What is a Lewis Dot Model?
This lives inside the nucleus of an atom, weighs 1 amu, is responsible for holding the nucleus together, and can be determined by using the atomic mass.
What is a neutron?
One of these are substances with two or more atoms bonded together such as the oxygen humans breathe (O2). The others are pure substances made up of all the same atoms such as gold (Au), hydrogen (H), and oxygen (O).
What are Molecules and Elements?
This is what all of the elements in the ROWS of the periodic table have in common.
What is the same number of energy levels?
The atomicity, or the number of each atom in this molecule, for this can be written as NaCl, otherwise known as sodium cloride or common table salt.
What is 1 atom of Sodium (Na) and 1 atom of Clorine (Cl)?
This is what you call an element that has gained one or more electrons?
What is a negative ion?
These are the electrons that live within the outermost energy level of an atom.
What are valence electrons?
This is commonly abbreviated as AMU.
What is atomic mass unit?
This is what all of the elements in the COLUMNS of the periodic table have in common.
What are they all have the same number of valence electrons?
The atomicity, or the amount of each atom in this molecule, can be written as the formula C12H22O11, which is commonly known as sugar.
What is 12 atoms of Carbon, 22 atoms of Hydrogen, and 11 atoms of Oxygen? or What is 45 total atoms
This is what you call an element that has given away one electron?
What is a positive ion?
These are the different levels that electrons live in and are used to sort the ROWS on the Periodic Table.
What are energy levels or electron shells?
Who initially developed the Periodic Table that we use today?
Who is Dmitri Mendeleev?