Science test Chapter 3-1 3-3
Terms
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- ductile
- A term used to describe a material that can be pulled out into a long wire
- electron
- A tiny negitivly charged particle that moves around the nucleus of an atom
- magnetic
- A charecteristic of those metals that are attracted to magnets and can nbe made into magnets
- proton
- A small positivly charged particle in the nucleus of an atom
- period
- A horozontal row in the periodic table
- periodic table
- A chart of elements showing the repeating pattern of their properties.
- supernova
- An explosion of a massive star
- nuclear fusion
- The process in which smaller nuclei aombine into larger nuclei
- transition metal
- An Element in group 3 through 12 of the periodic table
- group
- Elements in the same vertical columnof the periodic table
- noble gas
- An element in group 18 of the periodic table.
- nucleus
- The central core of an atom containing protons and usually nuetrons.
- halogen family
- Thhe elements in group 17 of the periodic table.
- diatomic molecule
- A molecule composed of two atoms of the same element
- conductor
- A substence that transmits heat or electricity easily
- plasma
- A state of matter in which atoms are stripped of theur electrons and the nucleus is packed closley.
- nonmetal
- An Element that lacks most of the properties of metals
- semiconductor
- An element that can conduct electricity under some conditions.
- malleable
- A term used to describe a material that can be hammered or rolled into shape
- lanthanide
- An element that is in the firsty row of rare earth elements in the periodic table
- alkali metal
- An Element in group one of the periodic table
- Alkaline earth metal
- An element in group 2 of the periodic table
- family
- Elements in the same vertical column of the periodic table; also called a group
- metaloid
- An Element that shares some of the characteristics of metals and some charecteristics os nonmetals
- Atomic Mass
- The average mass of one atom in an element
- nuetron
- a small particle in the nucleus of an atom, with no eletrical charge