THE TEST BANK FOR CHEMISTRY 6TH EDITION GILBERT MICROBIOLOGY PRACTICE EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS | ALREADY GRADED A+RECENT VERSION

THE TEST BANK FOR CHEMISTRY 6TH
EDITION GILBERT
MICROBIOLOGY PRACTICE EXAM
QUESTIONS WITH CORRECT DETAILED
ANSWERS | ALREADY GRADED
A+<RECENT VERSION>


1) Element - ANSWER pure chemical substance that can't be broken down into
other substances.



2) Atom - ANSWER -smallest unit of matter that contains elemental properties
-neutral
-contains a nucleus (houses neutrons & protons)
-electrons circle nucleus



3) Isotope - ANSWER same number of protons but have different numbers of
neutrons



4) Electron - ANSWER -negative subatomic particle located outside nucleus
-fill from inside out



5) Protons - ANSWER a positively charged subatomic particle located with in the
nucleus of an atom

, 6) Neutron - ANSWER a neutral subatomic particle located with in the nucleus of an
atom



7) Atomic number - ANSWER number of protons and electrons



8) Atomic mass - ANSWER number of protons and neutrons



9) The periodic table is arranged by an increase in what? - ANSWER atomic number
(number of protons)



10) Groups - ANSWER -vertical columns from 1-18
-ordered by electron configuration
-have the same number of valence electrons
*all elements with in these columns have similar properties



11) Group one - ANSWER -alkali metals (minus hydrogen)

-extremely reactive (they want to have 8 valence electrons in their outer shell)

-malleable/soft



12) Group two - ANSWER -alkaline earth metals

-fairly stable yet reactive



13) Peroid- ANSWER -horizontal rows
- number 1-7 on left hand side
-atomic numbers increase from left to right
*all elements in same period have the same number of atomic orbitals.



14) Alkali metals - ANSWER -left side of table
-Li, Na, K, Rb, Cs, Fr
-group 1 or 1a
-all have one valence electron

, -very reactive (due to one valence electron)
-malleable
-shiny
-light weight



15) Alkaline earth metals - ANSWER -located in group 2
-Be, Mg, Ca, Ba, Ra, Sr
-second most reactive
-when mixed they form oxides (high pH)
-bond very easily (2 valence electrons)
-ready to give up those 2 valence e- in an ionic or covalent bond .



16) Metals - ANSWER -group 3-12
-good conductors
-very reactive
-forms compounds easily
-forms cations by loss of an electron
-solid at room temp (except for mercury)
-malleable



17) Halogens - ANSWER -group 17
-F, Cl, Br, I, At

-very reactive (7 valence e-)

-not stable
-colourful
-corrosive
-"salt former"



18) Noble gases - ANSWER -group 18 or 8a (0)
-He, Ne, Kr, Xe, Rn
-nonreactive (outer valence shell is full)
-colourless
-very stable



19) Non-metals - ANSWER -lacks metallic attributes

, -easily vaporized



20) Transition metals - ANSWER -group 3-12
-contains an odd number of e-
-v e- are variable
-metallic
-strong tendency to form coordination compounds



21) Ionic bond - ANSWER one atom gains and e- and one atom loses an e- but both
become happy



22) Ion - ANSWER a positively or negatively charged atom or molecule



23) Cation - ANSWER -atom or a molecule which is + charged
-i.e. has more number of protons than electrons

-when a neutral charged atom loses e-



24) Anion - ANSWER -atom or a molecule which is - charged
-i.e. has more number of electrons than protons
-when a neutral charged atom gains an e-



25) Covalent bond - ANSWER -atoms sharing e- pairs
-sharing allows for atoms to have a full valence shell



26) Non-polar covalent - ANSWER equal sharing



27) Polar covalent - ANSWER unequal sharing



28) Hydrogen bond - ANSWER -weak chemical bond between an electronegative
atom and a hydrogen atom bound to another electronegative atom
-responsible for the properties of water