Elements and Compounds Flashcards
Four new elements have been officially added to the periodic table of elements in June of 2016 and these are?
NIHONIUM , MOSCOVIUM, TENNESSINE, OGANESSON
IUPAC stands for?
INTERNATIONAL UNION OF PURE APPLIED CHEMISTRY
a list of all known elements in a tabulated form
PERIODIC TABLE OF ELEMENTS
elements are arranged in such a manner so that elements with similar properties are close together
PERIODIC TABLE OF ELEMENTS
properties repeat themselves every few elements
PERIODIC
elements arranged in rows are called
groups
elements arranged in columns are called
PERIODS
elements with similar properties are arranged in different group. TRUE OR FALSE
FALSE
is a useful tool in identifying elements the exhibit similar properties.
THE PERIODIC TABLE OF ELEMENTS
lustrous solid at room temperature (except Hg, which is liquid)
METALS
ductility and malleability
METALS
hardness and tensile strength
METALS
good heat/electricity conductors
METALS
high melting point/boiling point
METALS
either solid or gas at room temperature (except Br2, which is liquid)
NONMETALS
brittle and dull solids
NONMETALS
poor conductors of heat and electricity
NONMETALS
low melting and boiling points
NONMETALS
exhibit properties of both metals and nonmetal
METALLOIDS/SEMIMETALS
conducts heat and electricity but not as good as how metals act as conductors
METALLOIDS/SEMIMETALS
a material that can conduct some electricity better than an insulator
SEMICONDUCTORS
some can conduct electricity as much as metals
SEMICONDUCTORS