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Periodic law

QuestionAnswer
Dmitri Mendeleev A Russian chemist who came up with the periodic table.
Lothar Myer A German chemist who came up with the periodic table.
Periodic law The physical and chemical properties of the elements are periodic functions of their atomic numbers.
Periodic table is an arrangement of the elements in order of their atomic numbers so that elements with similar properties fall in the same column, or group.
Noble Gas They are un
Lanthanides One of the 14 elements with atomic numbers from 58 to 71.
Actinides One of the 14 elements with atomic numbers from 90
Periodicity
Period A horizontal row of elements in the periodic table.
Family A vertical column of the periodic table.
Series consits of the first two groups the alkali metals and the alkali earth metals plus hydrogen and helium.
Group A vertical column of the periodic table.
s block elements
p block elements
d block metals
f block metals
Alkali metals one of the elements of group 1 of the periodic table. (lithium, sodium, potassium, rubidium, cesium, and francium.)
Alkaline Earth metals one of the elements of group 2 of the periodic table.
metal an element that is a good conductor of heat and electricity.
transition metals one of the d
main group or representative elements
halogens one of the elements in group 17.
atomic radius one half the distance between the nuclei of identical atoms that are bonded together.
bonding radius which is measured to the inside curvature , is the minimum radius one ionization energy
electron affinity the energy change that occurs when an electron is acquired by a neutral atom.
valance electron an electron that is available to be lost, gained, or shared in the formation of chemical compounds.
cation a positive ion.
antion a negative ion
ion an atom or group of bonded atoms that has a positive or negative charge.
atomic mass unit a unit of mass that is exactly 1/12 the mass of a carbon
nonmetal An element that is a poor conductor of heat and electricity.
isotope Atoms of the same element that have different masses.
shielding effect the decrease in attraction between an electron and the nucleus in any atom with more than one electron shell. It is also referred to as the screening effect or atomic shielding .
Dmitri Mendeleev A Russian chemist who came up with the periodic table.
Lothar Myer A German chemist who came up with the periodic table.
Periodic law The physical and chemical properties of the elements are periodic functions of their atomic numbers.
Periodic table is an arrangement of the elements in order of their atomic numbers so that elements with similar properties fall in the same column, or group.
Noble Gas They are un
Lanthanides One of the 14 elements with atomic numbers from 58 to 71.
Actinides One of the 14 elements with atomic numbers from 90
Periodicity
Period A horizontal row of elements in the periodic table.
Family A vertical column of the periodic table.
Series consits of the first two groups the alkali metals and the alkali earth metals plus hydrogen and helium.
Group A vertical column of the periodic table.
s block elements consits of the first two groups the alkali metals and the alkali earth metals plus hydrogen and helium.
p block elements consits of the last six groups minus helium.
d block metals portion of the periodic table 3 12
f block metals consists of those elements whose atoms or ions have valence electrons in f orbitals.
Alkali metals one of the elements of group 1 of the periodic table. (lithium, sodium, potassium, rubidium, cesium, and francium.)
Alkaline Earth metals one of the elements of group 2 of the periodic table.
metal an element that is a good conductor of heat and electricity.
transition metals one of the d
main group or representative elements
halogens one of the elements in group 17.
atomic radius one half the distance between the nuclei of identical atoms that are bonded together.
bonding radius which is measured to the inside curvature , is the minimum radius one ionization energy the energy required to remove one electron from a neutral atom of an element.
electron affinity the energy change that occurs when an electron is acquired by a neutral atom.
valance electron an electron that is available to be lost, gained, or shared in the formation of chemical compounds.
cation a positive ion.
antion a negative ion
ion an atom or group of bonded atoms that has a positive or negative charge.
atomic mass unit a unit of mass that is exactly 1/12 the mass of a carbon 12 atom, or 1.660 540 x 10 27 kg.
nonmetal An element that is a poor conductor of heat and electricity.
isotope Atoms of the same element that have different masses.
shielding effect the decrease in attraction between an electron and the nucleus in any atom with more than one electron shell. It is also referred to as the screening effect or atomic shielding .
Created by: EllieKennamer