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Atomic Structure
Atomic Bonding
Periodic Table
Acids and Bases
Mixed Practice
100
identify the three subatomic particles in an atom
What is a proton, neutron and electron
100
occurs between two or more nonmetals
What is covalent bond
100
the___________ are on the left of the periodic table and the ____________________ are to the right (with one exception of Hydrogen)
What is metal and nonmetal
100
sour tasting
What is acid
100
Identify the number of protons, neutrons, and electrons in an atom of Nitrogen as well as its atomic #.
What is 7 protons, 7 neutrons and 7 electrons and atomic #is 7
200
negative charged subatomic particle, that determines the chemical properties of an atom
What is an electron
200
covalent bonds that involve equal share of electrons are ________________ and those covalent bonds that involve unequal sharing of electrons, such as in water are called _____________.
What is nonpolar and polar
200
malleable, ductile, luster, most tend to lose electrons
What is metals
200
pH of greater than 7
What is base
200
In the first energy level there can be __ electrons; in the second energy level there can be __ electrons and in the third energy level there can be __ electrons. In order for any given atom to be 'stable' it must have at least ___ electrons in its valence shell, assuming that the valence shell is at least in the the 2nd or 3rd energy level.
What is 2, 8, 18, 8
300
the composition and charge of the nucleus of an atom
What is a positive nucleus composed of protons and neutrons
300
How do atoms become positively charged and what are these positive atoms called? How do atoms become negatively charged and what are these negatively charged atoms called?
What is losing electrons and cation and what is gaining electrons or anion
300
The _____ _____ are considered inert, or nonreactive, because their valance shells are ____
What is noble gases and full
300
_____ contribute H+ ions and ________________ contribute OH- ions to a solution
What is acid and base
300
If the following atoms were to form ions, identify the charge of each of them. Lithium (L) Sulfur (S) Carbon (C) Nitrogen (N) Calcium (Ca)
What is L = +1 S = -2 C = +/- 4 N = -3 Ca = +2
400
the atomic number of the element represents both of these
What is # protons and the # of electrons ( asssuming that the atom is electrically neutral)
400
Illustrate the formation of a chemical bond between sodium (NA) and chlorine (Cl)., What type of bond is this?
What is ionic bond
400
use the periodic table to identify the general structure of sodium; including the number of valence electrons and the name of its family
What is alkali metal, with one valence electron, 11 protons, 11 electrons, and 11 neutrons
400
identify two examples of acids in every day life and two examples of bases in daily life
What is - - answers will vary
400
explain what an isotope is using Carbon 12, Carbon 13 and Carbon 14 as your example
What is an atom of the same element that has different numbers of neutrons and, therefore, have different masses C12 - - 6 protons, 6 neutrons, 6 electrons C13 - - 6 protons, 7 neutrons, 6 electrons C14 - - 6 protons, 8 neutorns, 6 electrons
500
illustrate the structure of a carbon atom
What is atomic #=6; 6 protons and 6 neutrons in the nucleus and 6 electrons (2 in 1st energy level and 4 in the 2nd energy level), 4 valence electrons
500
illustrate the bonding of water
What is covalent bonding
500
compare and contrast the general characteristics of the metals, nonmetal and metalloids and point out their genral locations on the periodic table
What is metals - on left, malleable, ductile, luster, mostly solids, tend to form cations, conduct electricity and heat nonmetals - -on right, brittle, poor conductors of heat/electricity, tend to form anions metalloids - along staircase, semiconductors, share both characteristics under certain conditions
500
draw a venn diagram comparing the general characteristics of acids and bases
What is acids - sour, ph<7, adds H+ to solution, corrosive to metals bases - bitter, slippery, adds OH- to solution, pH>7 both are measured using the pH scale, and can damage cells
500
Illustrate the covalent bonding of O2 (oxygen) and that of H2O (water) and identify which of the two would form a polar covalent bond and why.
What is each illustration should clearly illustrate the sharing of electrons and water will form the polar covalent bond because the oxygen's nucleus has a stronger pull on the electrons than the Hydrogen does causing that side to be slightly negative and the hydrogen side to be slightly positive