The smallest particle that has the properties of an element
A negatively charged subatomic particle found in the energy level of an atom
A neutral subatomic particle in the nucleus of an atom
A positively charged subatomic particle in the nucleus of an atom
The process adding electrons to or removing electrons from an atom or group of atoms
Any atoms having the same number of protons but a different number of neutrons
The number of protons in the nucleus of an atom
The total number of protons and neutrons in the nucleus of an atom isotopes
An element that has properties of both a metal and nonmetal
The elemnts that are usually poor conductors of heat and electricity
The elements that are good conductors of heat and electricity
(chemistry) the tendency of an atom or radical to attract electrons in the formation of an ionic bond
Any of the elements lithium, sodium, potassium, rubidium, cesium, and francium, occupying Group IA (1) of the periodic table. They are very reactive, electropositive, monovalent metals forming strongly alkaline hydroxides.
A property or characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed
color, smell, freezing point, boiling point, melting point, infra-red spectrum, attraction (paramagnetic) or repulsion (diamagnetic) to magnets
a beam of electrons emitted from the cathode of a high-vacuum tube.
Model is an informal term in physics. It is used to describe where electrons are when they go around the nucleus of an atom.
a thing that is composed of two or more separate elements; a mixture
any of the elements fluorine, chlorine, bromine, iodine, and astatine, occupying group VIIA (17) of the periodic table.
any of the gaseous elements helium, neon, argon, krypton, xenon, and radon, occupying Group 0 (18) of the periodic table.
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