ACS Gen Chem 1 Exam QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES (VERIFIED
ANSWERS) |ALREADY GRADED A+
Terms in this set (48) QUESTIONS VERIFIED ANSWERS
1) Ion A species of an element in which the number
of electrons does not equal the number of
protons.
2) Isotope Each isotope of an atom has a different
number of neutrons.
3) Isoelectric Two atoms with the same charge.
4) Isotopic Two atoms with the same number of
neutrons.
5) Transition Metal Orbitals The 4s orbital is filled before the 3d orbital,
but listed after.
6) Paramagnetic Atoms that possess a permanent magnetic
charge due to the presence of unpaired
electrons.
7) Electropositive Tending to lose electrons and form positive
ions.
8) Tetrahedral Bond Angle 109.5°
, 9) Resonance Structures Two equally correct arrangements of one
molecule's electrons; generally the molecule
exists as an average of the two.
10) Polar Molecule A molecule that is mostly positive on one
side and mostly negative on the other.
11) sp³ Orbital An orbital composed of one s orbital and
three p orbitals; can hold eight total electrons.
Tetrahedral.
12) Trigonal Planar The way that three objects will arrange
themselves around a central atom. Non-polar.
13) Free Radicals Compounds with an odd number of electrons
in their Lewis Structure. Eg. NO₂
14) Incomplete Octets Occur in elements that can form stable bonds
with less than eight electrons. Eg. BF₃
15) Expanded Octets Occur in the third row of the periodic table
and beyond in elements that can form stable
bonds with more than eight electrons. Eg.
XeF₂
16) Hydrogen Bonding When hydrogen is attracted to electronegative
atoms.
17) Sigma Bonding Formed by head-on overlapping between
orbitals.
18) Coordinate Covalent Bonding A covalent bond in which the two electrons
DETAILED ANSWERS WITH RATIONALES (VERIFIED
ANSWERS) |ALREADY GRADED A+
Terms in this set (48) QUESTIONS VERIFIED ANSWERS
1) Ion A species of an element in which the number
of electrons does not equal the number of
protons.
2) Isotope Each isotope of an atom has a different
number of neutrons.
3) Isoelectric Two atoms with the same charge.
4) Isotopic Two atoms with the same number of
neutrons.
5) Transition Metal Orbitals The 4s orbital is filled before the 3d orbital,
but listed after.
6) Paramagnetic Atoms that possess a permanent magnetic
charge due to the presence of unpaired
electrons.
7) Electropositive Tending to lose electrons and form positive
ions.
8) Tetrahedral Bond Angle 109.5°
, 9) Resonance Structures Two equally correct arrangements of one
molecule's electrons; generally the molecule
exists as an average of the two.
10) Polar Molecule A molecule that is mostly positive on one
side and mostly negative on the other.
11) sp³ Orbital An orbital composed of one s orbital and
three p orbitals; can hold eight total electrons.
Tetrahedral.
12) Trigonal Planar The way that three objects will arrange
themselves around a central atom. Non-polar.
13) Free Radicals Compounds with an odd number of electrons
in their Lewis Structure. Eg. NO₂
14) Incomplete Octets Occur in elements that can form stable bonds
with less than eight electrons. Eg. BF₃
15) Expanded Octets Occur in the third row of the periodic table
and beyond in elements that can form stable
bonds with more than eight electrons. Eg.
XeF₂
16) Hydrogen Bonding When hydrogen is attracted to electronegative
atoms.
17) Sigma Bonding Formed by head-on overlapping between
orbitals.
18) Coordinate Covalent Bonding A covalent bond in which the two electrons
