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What is Two or elements put together
compound
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What is Endothermic
pertains to a chemical change
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What is Rows on periodic table
Period
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What is Family
columns on a periodic table
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What is characteristic of a substance that is observed during a reaction
Chemical property
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What is Atomic Number
Numbers of positive charges on protons nucleus
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What is Chemical change accompanied by the liberation of heat
Exothermic
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What is Atomic radii
Distance fro nucleus to outer energy level
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What is electronic bond between two ions
Ionic bond
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What is mass number
integer nearest in value to the atomic weight of an atom
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What is Containing negative electricity
Electro negativity
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What is First Ionization energy
energy required to remove the most loosely held electron
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What is the smallest physical unit of an element
Molecule
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What is bond between 2 atoms where the electron forming the bond are unequally disstributing
Polar covalent bond
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What is The energy required to remove outer most electron
Ionic radii
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What is Lattice structure
An arrangement in space of isolated points in a regular pattern show the protons of atoms
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What is Only property that is measurable whose value describes a state of physical system
Physical property
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What is
Electron on the outer most energy level
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What is Average atomic mass
it the weighted average of that element
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What is Covalent bond
Bond formed by the sharing of a pair of electrons by 2 atoms
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