metals
how shiny a metal is, how well it reflects light
what is luster?
an element that has physical and chemical properties of both metals and non-metals
what is a metalloid?
these have none of the same properties as metals
what are non-metals?
the positively charged particle that lives in atoms
what are protons?
a chart of the elements arranged into rows and columns according to their physical and chemical properties
what is the periodic table?
when an element is easily pulled into wires
what is ductile (or ductility)?
an element that conducts electricity at high temperatures, but not at low temperatures
what is a semiconductor?
this is what something is when it has no luster
what is dull?
this atomic particle contributes to almost none of an atoms weight
what is an electron?
a row on the periodic table, the physical and chemical properties of the elements change
what is a period?
this is the most malleable metal
what is gold?
this is the most abundant metalloid in the universe
what is silicon?
an element in group 17, any of these elements can react with a metal to form a salt
what is a halogen?
you need to add the number of this atomic particle to the number of protons to get the atomic mass of an element (_________ + protons = atomic mass)
what are neutrons?
this is also known as a group, elements have similar chemical and reactive properties
what is a group?
this element has the highest conductibility to heat and electricity of all elements
what is silver?
this is a useful property of metalloids that is often used in electronic devices
what is semi-conductivity?
an element in group 18, they were added to the periodic table many years after its creation
what are noble gases?
iron + carbon
what is steel?
the number of protons an element has is equivalent to this
what is the atomic number?
the elements in group 1 are also known as this
this element is a semiconductor that is commonly used for computers and other electronic devices
what is silicon?
this element is found in most of the compounds that make up living organisms
what is carbon?
a repeating pattern
what is periodic?
2 is the atomic number for this element
what is Helium (He)?