PERIODIC TABLE Crossword

has both properties of metals and nonmetals
Where unreactive gases are located
Number of periods
largest category of elements
electrons that are in the outermost energy level
horizontal row of elements
Atomic number is 1
column of elements
the mass of an atom of a chemical element. it is approximately equivalent to number of proton and neutron in the atom
poor conductors of heat/electricity
location of elements with similar properties
how elements in the periodic table are arranged
the negative charge of an atom
the positive charge of an atom
center of an atom
the smallest particle
a neutral sub-atomic particle
what does the abbreviation of the element name called
any of atoms that have the same number of proton but different number of neutrons
a quantity of equal to one twelfth the mass of a carbon-12
elements in the group 1 of the periodic table
the substance formed when two or more chemical elements are chemically bonded together
elements in the group 17 are called
elements that are in the groups 3 to 12 on the periodic table
an orbit followed by electrons around an atom's nucleus
made when two or more non metal atoms bond by sharing valence electrons
flowing freely but of constant volume
the complete transfer of velence electron(s) between atoms
a chemical bond that involves the sharing of electron pairs between atoms.
a chemical compound comprising ions held together by electrostatic force termed ionic bonding
founded the modern version of periodic table
founded the first periodic table
an atom or molecules with a net electric charge due the loss or gain of one or more electron
firm and stable in shape
an air like fluid substance which expends freely to fill any space available
a measure of the tendency of an atom to attract a bonding pair of electrons
the energy required to remove an electron from a gaseous atom or ion
total charge of all the protons in the nucleus
the energy change that occurs when an atom gains an electron, releasing energy in the process.
the total distance from an atom's nucleus to the outermost orbital of electron.
the measure of an atom's ion in a crystal lattice
the level of reactivity of a metal