NLN Pax RN Basic Chemistry

NLN Pax RN Basic Chemistry

MATTER



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERa substance that has mass and
occupies space.



SUBSTANCE



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERmatter that has the same composition
and properties throughout



ELEMENT



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERany substance that cannot be broken
down into simpler substances. Identified by its symbol and its atomic number.



ATOMIC NUMBER



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERis equal to the number of protons
found in the nucleus.



MASS NUMBER



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERnumber of protons and neutrons
(nucleons) in the nucleus of an atom

,ISOTOPE



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERatoms of the same element with the
same atomic number but with different numbers of neutrons



ATOMIC MASS



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERThe atomic mass may be considered
to be the total mass of protons, neutrons and electrons in a single atom.



ION



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERatom that has a positive or negative
charge



ATOM



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERsmallest unit of an element that still
retains the properties of that element consists of thre subatomic particles.



PROTON



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERa subatomic particle that has a
positive charge and that is found in the nucleus of an atom



CATION

, Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERa positively charged ion



ANION



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERa negatively charged ion



VALENCE ELECTRON



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERElectrons found on the outer shell of
an atom which can combine with other atoms to form molecules



PERIODIC TABLE



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERA table that shows the elements, their
atomic number, symbol, and average atomic mass; elements with similar chemical properties are
grouped together.



PERIOD



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERa horizontal row of elements in the
periodic table



GROUP



Atomic Structure, Isotopes, Ions, and the Periodic Table - ANSWERVertical column of elements in the
periodic table, Contains elements with similar properties because of their simlar electron configurations.