Keywords Flashcards
Atom
does not dissolve in a liquid
Element
a substance made up of only one type of atom.
Chemical symbol:
The letter or letters used on the Periodic table to represent elements
Subatomic particles:
the small particles that make up an atom
Protons:
a Positively charged particle located in the nucleus of an atom
Neutrons
A neutrally charged particle located in the nucleus of the atom
Electrons
A negatively charged particle, located on shells that orbit the nucleus of the atom
Atomic number
A negatively charged particle, located on shells that orbit the nucleus of the atom
Mass number
the total number of protons and neutrons in an atom
Atomic structure
the idea proposed by Niels Bohr that electrons orbit the nucleus, in shells.
Electronic configuration
Describing the location of electrons in an atom
Istotapes
Atoms with the same number of protons but different numbers of neutrons
Periodic table
the modern periodic table groups elements to show patterns in their properties.
Groups
vertical columns of elements
Periods
horizontal rows of elements across the periodic table