The Periodic Table
what word goes along with "a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure"?
Periodic table
metals definition
A metal is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well.
what is alkaline earth metals
any of the six chemical elements that comprise Group 2 (IIa) of the periodic table.
What is the defition of "Period" ?
A period in the periodic table is a row of chemical elements.
what word goes with "any of various chemical elements that have valence electrons"?
transition metals
what word does this definition go with "a negatively charged particle, located in the outermost shell of an atom, that can be transferred to or shared with another atom."?
valence electrons
what is a colum of elements on the periodic table called?
A group
defnition of "nonmetals"
a substance having a finite activation energy (band gap) for electron conduction.
what are halogens
any of the six nonmetallic elements that constitute Group 17, fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).
what is "the periodic law" ?
the elements when arranged in the order of their atomic numbers show a periodic variation of atomic structure and of most of their properties
what is "metalloids"
an element (e.g. arsenic, antimony, or tin) whose properties are intermediate between those of metals and solid nonmetals or semiconductors.
what are the noble gasses in group 18
any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).
Definition of atomic mass unit
a measure of atomic mass
what is alkali metals
any of the elements lithium, sodium, potassium, rubidium, cesium, and francium, occupying Group IA (1) of the periodic table. They are very reactive, electropositive, monovalent metals forming strongly alkaline hydroxides.