Atoms
This is the center of an atom.
What is the nucleus?
The elements are organized into this.
What is the periodic table of elements?
This is what atoms use to bond to one another.
What are valence electrons?
These form when two or more atoms join together chemically.
What is a molecule?
These are dot diagrams that show chemical bonds.
What are Lewis structures?
This particle has a positive charge.
What is a proton?
The elements are arranged by this on the periodic table.
What is the atomic number?
The Bohr model shows electrons moving around the nucleus in these.
What are orbits?
This is a bond formed when atoms share electrons.
What is a covalent bond?
The symbol He.
What is the symbol for Helium?
These particles have no (neutral) charge.
What are neutrons?
What are periods?
This has an atomic number of 1.
What is Hydrogen?
This is a bond formed when atoms donate electrons.
What is an ionic bond?
The symbol Na.
What is the element Sodium?
These particles have a negative charge.
What are electrons?
These are the vertical columns of the periodic table.
What are groups or families?
This has an atomic number of 8.
What is Oxygen?
This is a group of atoms or molecules that total 6.022 x 10>23
What is a mole?
The symbol K
What is the element Potassium?
This is an atom that is not electrically balanced.
What is an ion?
A slight variation in the number of neutrons in an element creates this.
What is an isotope?
This has an atomic number of 2.
What is Helium?
These two things form an ionic bond.
What are a cation and an anion?
The symbol C.
What is the element Carbon?