EOC Physical Science Vocab #1
Terms in this set (16)
particle with a +2 electrical charge and atomic mass of 4 that is made of two protons and two neutrons and is emitted from a decaying atomic nucleus.
weighted average mass of the mixture of an element's isotopes.
number of proton's in an atom's nucleus
electron with an atomic mass of 0 and a -1 electrical charge that is emitted at high speed from a decaying atomic nucleus.
attraction formed between atoms when they share electrons
negatively charged particles surrounding the center of an atom.
electromagnetic wave with no mass and no charge that travels at the speed of light and is usually emitted with alpha or beta particles.
vertical column in the periodic table.
amount of time it takes for help the nuclei in a sample of a radioactive isotope to decay.
charged particle that has more or fewer electrons than protons.
attraction formed between two oppositely charged ions in an ionic compound.
atoms of the same element that have different numbers of neutrons.
process of splitting a large atomic nucleus into two nuclei with smaller masses.
process of fusing together two atomic nuclei with low masses to form one nucleus with a larger mass.
positively charged particle, composed of quarks, inside the nucleus of an atom.
the electrons in the outermost shell or energy level of an atom.
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