Question 1 0.5 points Save Carbon-14 has 8 _____.
a.
none of the above
b.
neutrons
c.
protons
d.
isotopes
e.
atoms
f.
nuclei
Quartz = Silicate
Which type of bonding is exhibited by the following?:
NaCl
ionic
diamond = covalent
During a glaciation the ocean water is enriched in ____.
a.
18O
b.
magnetized particles
c.
16O
d.
foraminifera
Please match up each of the following diagrams with their silicate structure and a sample mineral
of that type
M.
This diagram is from the [i] silicate structure.
K.
A sample mineral is [j].
J.
This diagram is from the [k] silicate structure.
L.
A sample mineral is [l].
B.
This diagram is from the [m] silicate structure.
D.
A sample mineral is [n].
C.
This diagram is from the [o] silicate structure.
F.
A sample mineral from this silicate structure is [p].
N.
This diagram is from the [q] silicate structure.
I.
A sample mineral from this silicate structure is [r].
a. gold B. double-chain C. sheet D. brown amphibole E. halite F. muscovite G.
carbonate H. sulphate I. quartz J. single-chain K. olivine L. MgSiO3 M. isolated N.
framework
The innermost energy level in the standard model of an atom is full when it possesses two
electrons.
Agree
Disagree
In some minerals, like ______, the bonds are equally strong in all directions, therefore
they have no cleavage but instead fracture along irregular surfaces that are commonly
curved.
a.
calcite
b.
feldspar
c.
none of the above
d.
quartz
e.
biotite
f.
amphibole
Please select the one or more statements below which define a mineral.
1.
naturally occurring
2.
physically distinctive
3.
crystalline substance
4.
made up of silicate tetrahedrons
5.
composed of small rocks
6.
must be a silicate
7.
inorganic
8.
chemically distinctive
The ability of a mineral to break along preferred directions is called ___.
a.
cleavage
b.
fracture
c.
crystal form
d.
hardness
We are currently in a/an ______ period.
a.
glacial
b.
Brunhes normal
c.
interglacial
d.
none of the other answers are correct
Atoms with either a positive or negative charge are called ____.
a.
ions
b.
compounds
c.
elements