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Bader Chap. 17 Vocab
Chapter 17: The Atomic Nature of Matter
|The smallest particle of an element that can be identified with that element. Consists of protons and neutrons in a nucleus surrounded by electrons.
|A substance made of only one type of atom. Examples are carbon, hydrogen, oxygen, and nitrogen.
|The perpetual random movement of microscopic particles suspended in a fluid medium.
|The smallest particle of substance consisting of two or more atoms of the same or different elements bonded together.
|A chemical substance made of atoms of two r more different elements combined in a fixed proportion.
|A description that uses numbers and symbols of elements to describe the proportions of elements in a compound or reaction.
|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.
|The principle building block of the nucleus; a neutron or a proton.
|An electrically neutral particle that is one of the two kinds of particles found in the nucleus of an atom.
|A positively charged particle that is one of the two kinds of particles found in the nucleus of an atom.
|A form of an element having a particular number of neutrons in the nuclei of its atoms. Different types of a particular element have the same atomic number but different atomic mass numbers.
|Number of protons in the nucleus of an atom.
|An atom (or group of atoms bound together) with a net electric charge, which is due to the loss or gain of electrons.
|A model in which the electrons of an atom are picture as grouped in concentric shells around the nucleus.
|Shell Model of the Atom
|A chart that lists the elements by atomic number and by electron arrangements, so that elements with similar chemical properties are in the same column.
|A fourth phase of matter, in addition to solid, liquid, and gas. In the plasma phase, which exists mainly at high temperature, matter consists of positively charged ions and free electrons.