Electron Configuration | More Electron Configuration and Chemical Bonding | Chemical Bonding | Periodic Trends | More Periodic Trends |
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What is 4
How many quantum numbers are needed to describe the energy state of an electron in an atom?
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What is Hund's Rule
Which rule requires that each of the p orbitals at a particular energy level receive one electron before any of them can have two electrons?
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What is a covalent bond
The chemical bond formed when two atoms share electrons is called
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Who was Mendeleev
The idea of arranging the elements in the periodic table according to their chemical and physical properties is attributed to
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What is numbers
The periodic law states that the physical and chemical properties of elements are periodic functions of their atomic
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What are p orbitals
The set of orbitals that are dumbbell shaped and directed along the x, y and z axes
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What is the Pauli exclusion principle
Two electrons in the 1s orbital must have different spin quantum numbers to satisfy
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What is nonpolar covalent
If two covalently bonded atoms are identical, the bond is
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What is atomic mass
Mendeleev noticed that properties of elements usually repeated at regular intervals when the elements were arranged in order of increasing
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What are properties
Elements in a group or column in the periodic table can be expected to have similar
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What is an s orbital
A spherical electron cloud surrounding an atomic nucleus
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What is a chemical bond
The electrostatic attraction between positively charged nuclei and negatively charged electrons permits two atoms to be held together by a(n)
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What is bond length
The separation for which potential energy is at a minimum
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What is increases
The energy required to remove an electron from an atom increases or decreases as you move from left to right from potassium through iron
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What are nonmetals
Elements to the right side of the periodic table have properties most associated with
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What is 5
The number of orbitals for the d sublevel
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What is stable
Atoms are more stable or unstable when they are combined
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What is bond energy
The energy required to break a chemical bond
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What are undiscovered elements
Mendeleev predicted that the spaces in his periodic table represented
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What is increases
Within a group of elements, as the atomic number increases, the atomic radius
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What is the Aufbau principle
The statement that an electron occupies the lowest available energy orbital
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What is an ionic bond
A chemical bond resulting from the electrostatic attraction between positive and negative ions is called
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What is metallic bonding
Malleability and ductility are characteristic of substances with
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Who was Moseley
The person whose work led to a periodic table based on increasing atomic number
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What is decreases
In a row in the periodic table, as the atomic number increases, the atomic radius generally
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