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herber physic17 atom

QuestionAnswer
the smallest particle of an element that can be identified with that element. Consists of protons and neutrons in a nucleus surrounded bt electrons atoms
substance made of only one kind of atom element
the perpetual random movement of microsopic particles suspended in fluid medium brownian motion
the smallest particle of a substance consisting of two or more atoms of the same or different element bonded together molecule
a chemical substance made of atoms of two or more different elements combined in a food proportion compound
a description that uses numbers and symbols of element to describe the proportions of elements in compound or reaction chemical formula
the positively charged center of an atom, which contains protons and neutrons and has almost all the mass of the entire atom but only a tiny fraction of the volume nucleus
the pricipal building block o the nuecleus nucleons
an electrically neutral paricles found in the nucleus of an atom neutrons
the positively charged particle that is one of the two kinds of particles found in the nucleus of an atom protons
a form of am element having a particular number of neutrons in the nuclei of its atom. isotopes
number of protns in the nucleus of an atom atomic number
atom with a net electric charge, which is due to the loss or gain of electron ion
a model in which the electrons of an atom are pictured as grouped in concentric shells around the nucleus shell model of the atom
the chart that list element by atomic number and electron arrangement periodic table
fourth phase of matter, in addition to solid, liquid, and gas. In the plasma phase which exists mainly at high temperture, matter consist of positively charged ions and free electrons plasma
Created by: 14_aherber