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Atomic Structure
Counting Atoms
Chemical Bonding
Covalent Bonding
Ionic Bonding
100
The smallest particle of an element that retains the chemical properties of that element
What is an atom
100
The number of protons in the nucleus of each atom of an element
What is an atomic number
100
Is a mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together
What is a chemical bond
100
A neutral group of atoms that are held together by covalent bonds
What is a molecule
100
Positive and negative ions that are combined so that the numbers of positive and negative charges are equal
What is an ionic compund
200
postitively charged particles with about four times the mass of a hydrogen atom
What is alpha particles
200
Atoms of the same element that have different masses
What is a isotope
200
Chemical bonding that results from the electrical attraction between large numbers of cations and anions
What is ionic bonding
200
the relative numbers of atoms of each kind in a chemical compund by using atomic symbols and numerical subscripts
What is a chemical formula
200
The simplest collection of atoms from which and ionic compound's formula can be established
What is a formula unit
300
the short range proton-neutron, proton-proton, and neutron-neutron forces that hold the nuclear particles together
What is nuclear forces
300
the total number of protons and neutrons in the nucleus of an isotope
What is a mass number
300
results from the sharing of electon pairs between two atoms
What is covalent bonding
300
The types and number of atoms combined in a single molecule of a molecular compound
What is a molecular formula
300
The energy released when one mole of an ionic crystaline compund is formed from gaseous ions
What is lattice energy
400
In 1911 a New Zealand scientist discovered the atomic nucleus
Who is Ernest Rutherford
400
The amount of a substance that contains as many particles as there are atoms in exactly 12 grams of carbon-12
What is a mole
400
a covalent bond in which the bonding electrons are shared equally by the bonded atoms resulting in a balanced distribution of electrical change
What is nonpolar-covalent bond
400
The distance between two bonded atoms at their minumum potential energy, that is, the average distance between two bonded atoms
What is bond length
400
A charged group of covalently bonded atoms
What is polyatomic ions
500
Experiments carried out in glass tubes in which electric current was passed through various glasses at low pressures
What is cathode-ray tubes
500
The number of particles in exactly one mole of a pure substance
What is Avogadro's number
500
A covalent bond in which the bonded atoms have an unequal attraction for the shared electrons
What is polar-covalent bond
500
Formulas in which atomic symbols represent nucleus and inner-shell electrons, dot-pairs, or dashes between two atomic symbols represent electronpairs in covalent bonds, and dot adjacent to only one atomic symbol represent unshared electrons
What is Lewis structures
500
Used to demonstrate the changes that take place in ionic bonding
What is a electron-dot notation