A
B
C
D
E
100
an element in group 2 of the periodic table
What is alkaline earth metals
100
an element in Group 1 of the periodic table
What is alkali metals
100
element in Group 18 of the periodic table
What is a noble gas
100
type a nuclear radiation made of high-energy waves
What is gamma radiation
100
class of elements characterized by physical properties such as shininess, malleability, ductility, and conductivity
What is a metal
200
molecule consisting of two atoms
What is diatomic
200
ease and speed with which an element combines, or reacts, with other elements and compounds
What is reactivity
200
a type of nuclear radiation consisting of two protons and two neutrons
What is an alpha particle
200
a fast-moving electron that is give off as nuclear radiatio
What is a beta particle
200
material that conducts current under certain conditions
What is a semi-conductor
300
a material that can be pulled out into a long wire
What is ductile
300
machine that moves atomic nuclei at higher and higher speeds until they crash into one another sometimes forming heavier elements
What is a particle accelerator
300
radioactive isotope that can be followed through the steps of a chemical reaction or industrial process
What is a tracerr
300
an element that has some characteristics of both metals and nonmetals
What is a metalloid
300
gradual wearing away of a metal element due to a chemical reaction
What is corrosion
400
a type of nuclear radiation consisting of two protons and two neutrons
What is an alpha particle
400
an element found in Group 17 of the periodic table
What is halogen
400
ability of an object to transfer heat or electricity to another object
What is conductivity
400
material that can be pounded into shapes
What is malleable
500
spontaneous emission of radiation by an unstable atomic nucleus
What is radioactivity
500
process in which the atomic nuclei of unstable isotopes release fast-moving particles and energy
What is radioactive decay
500
one of the elements in Group 3 through 12 of the periodic table
What is transition metals
500
element that lacks most of the properties of metals
What is a non-metal
500
molecule consisting of two atoms
What is diatomic
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