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Vocab ch 13 Tahi

Paes science vocab 2012

QuestionAnswer
A series of nonmetal elements from group 17 of the periodic table Halogens
The number of protons found in the nucleus of an atom Atomic number
A mathematical function that describes the wave like behavior if either one electron or a pair of electrons in an atom Electron cloud
The smallest unit of an element that maintains the properties of that element Atom
Group 18; unreactive Helium, neon, argon, krypton, Xeon, radon Noble gases
Group 2; Beryllium, magnesium, calcium,... Alkaline earth metals
Group 1; Lithium, sodium, potassium, rubidium, cesium, francium Alkali metals
An electrically excitable cell that processes by electrical and chemical signaling Neurons
The standard unit that is used for indicating mass on an atomic or molecular scale Atomic mass unit
A subatomic particle p or p+ and a positive electrical charge of one elementary charge Proton
An atom that has the same number of protons as other atoms of the same element do but that has a different number of electron Isotypes
An atoms central region, which is made upon protons and neurons Nucleus
Vertical column of elements, share chem properites Group
Horizonantal row of elements Period
The mass of a specific Isotypes Atomic mass
The total number of protons and neurons in an atomic nucleus Mass number
A subatomic particle that has a negative charge Electron
Created by: Ena_tahirovic
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