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22 Cards in this Set
- Front
- Back
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Actinides: |
an element in the 2nd row of rare earth elements in the periodic table |
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Alkali Metal: |
an element in group 1 of the periodic table |
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Atom |
the smallest particle of an element |
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Atomic Mass: |
the average mass of 1 atom of an element
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Atomic Number: |
the number of protons in the nucleus of an atom
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Compound: |
a substance made of 2 or more elements chemically combined
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Electron: |
a tiny negatively
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Element: |
a part or aspect of something abstract, especially one that is essential or characteristic. |
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Group: |
any number of entities (members) considered as a unit |
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Halogens Family: |
he halogens include the five elements fluorine, chlorine, bromine, iodine, and astatine. They make up column 17 of the periodic table. |
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Lathanides: |
The lanthanide series is the group of elements in which the 4f sublevel is being filled. |
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Matter: |
All physical objects are composed of matter, in the form of atoms, which are in turn composed of protons, neutrons, and electrons. |
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Metal: |
A substance with high electrical conductivity, luster, and malleability, which readily loses electrons to form positive ions |
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Metalloid: |
an element with properties intermediate between those of a metal andnonmetal. |
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Neutron: |
The neutron is the particle in the atomic nucleus with a mass = 1 and charge = 0. |
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Nobel Gases: |
a group in the P.T. that are gases |
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Nonmetal: |
a element that is not a metal |
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Nucleus: |
its whats in the center of a atom with protons and neutrons inside |
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Period: |
A row going up and down in the P.T. |
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Periodic Table: |
a set of all the elements in the world rouped by different elements |
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Proton: |
The proton is the particle in the atomic nucleus |
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Transition Metal: |
elements that have partially filled d sublevel orbitals. |
