Vocab

Vocb

published on October 31, 201050 responses 0 4.0★ / 5

is the smallest particle of an element

atom
electron
nucleus

is the sum of the protons and neutrons in the nucleus of an atom

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proton
mass number
energy level

properties of the elements repeat in each period

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group
periodic table
plasma

the verticle rows in the periodic table

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plasma
period
group

element is classified as this

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metal
malleable
transition metal

is the ability of an object to transfer heat or electricity to another object

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malleable
conductivity
ductile

element that lacks most of the properties of a metal

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halogen
diatomic
nonmetal

elements in group 18

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semiconductor
nobel gas
metalloid

the atomic nuclei of unstable isotopes release fast-moving particles and energy

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radioactive decay
radioactivity
beta particle

are radioactive isotopes that can be followed through the steps of chemical reaction or an industrial process

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tracer
alpha particle
beta particle