Atoms are composed of a tiny nucleus and a larger surrounding electron cloud. The eloctrons have a negative charge and the nucleus has a positive chagge. Because opposite electrical charges attract, the atom is held together. The nucleus is composed of positive charged protons and neutnl particles called neutrons. If an atom loses or gains an electron, it becomes an ion The atomic number of enthon is 6 . This is also the number of positive p The atomic weight of a nucleus is the sum of the number of protons and the number of neutrons. For carbon-12 (C-12), the atomic weight is How many neutrons are in C-12? All carbon nuclel have the same number of positively charged P have different number: - These different carbon isotopes may eiperiments. The last one is important for madioactive dating Bonding between atoms comes in 3 main forms: 1. bonding involves charge transfer 2. Motallic bending involves shared electrons between 2 atoms. 3. Metallic bonding involves electrons shared with a whole crystal. Salt crystals, also called h ch and are a good eximple of i involve the 2 elements s . bec in shape. bonding. Salt crystals tend to Minerals: use your minerals box and enclosed booklet to learn some basic minerals. It is pretty self-explanatory. Make sure at the end of the day that the minerals go back into the bags they came out of. Cleavage bag You should find 6 samples: mica, hallite, calcite, feldspar, obsidian, and serpentine. Examine the objects, list their names and deseribe their cleavage or fracture. 4 have cleavage, 2 will instead fracture. Does it eleave smoothly on 1 plane? 2? 3 ? If it frectures, is it eonchold on onneven? Tenacity deseribes how well a mineral bolds together. You should find 4 samples: copper, mice, sypsum and sulfur. From the tenacity bag, name each mineral, and give its tenacity, picking from the four choices below: malleable: The mineral may be pounded out into thin sheets. Metallic-bonded minerals are usually malleable. fieriblet Can be bent a little without breaking. seetiles May be cut smoothly with a knife. brittle: The mineral breaks or powders easily. Most ionic-bonded minenls are britlle. \begin{tabular}{|l|l|} \hline Name & Tenacity \\ \hline & \\ \hline & \\ \hline & \\ \hline \end{tabular} Streak. Open your streak bag. You should find 5 samples: jasper, hematite, tale, pyrite, and graphite. For each sample, write down its color, streak it on the provided porcelain plate, record its streak color and its luster (the way it reflects light). Pick the luster from: metallic, sub- manual- open it to the mineral chapter for more identification clues. .

1. Atoms are composed of a tiny nucleus and a larger surrounding electron cloud. The eloctrons
have a negative charge and the nucleus has a positive chagge. Because opposite electrical
charges attract, the atom is held together. The nucleus is composed of positive charged protons
and neutnl particles called neutrons. If an atom loses or gains an electron, it becomes an ion The
atomic number of enthon is 6 . This is also the number of positive p The atomic weight of a
nucleus is the sum of the number of protons and the number of neutrons. For carbon-12 (C-12),
the atomic weight is How many neutrons are in C-12? All carbon nuclel have the same number
of positively charged P have different number: - These different carbon isotopes may
eiperiments. The last one is important for madioactive dating Bonding between atoms comes in 3
main forms: 1. bonding involves charge transfer 2. Motallic bending involves shared electrons
between 2 atoms. 3. Metallic bonding involves electrons shared with a whole crystal. Salt
crystals, also called h ch and are a good eximple of i involve the 2 elements s . bec in shape.
bonding. Salt crystals tend to Minerals: use your minerals box and enclosed booklet to learn
some basic minerals. It is pretty self-explanatory. Make sure at the end of the day that the
minerals go back into the bags they came out of. Cleavage bag You should find 6 samples: mica,
hallite, calcite, feldspar, obsidian, and serpentine. Examine the objects, list their names and
deseribe their cleavage or fracture. 4 have cleavage, 2 will instead fracture. Does it eleave
smoothly on 1 plane? 2? 3 ? If it frectures, is it eonchold on onneven? Tenacity deseribes how
well a mineral bolds together. You should find 4 samples: copper, mice, sypsum and sulfur.
From the tenacity bag, name each mineral, and give its tenacity, picking from the four choices
below: malleable: The mineral may be pounded out into thin sheets. Metallic-bonded minerals
are usually malleable. fieriblet Can be bent a little without breaking. seetiles May be cut
smoothly with a knife. brittle: The mineral breaks or powders easily. Most ionic-bonded minenls
are britlle. begin{tabular}{|l|l|} hline Name & Tenacity hline & hline & hline &
hline end{tabular} Streak. Open your streak bag. You should find 5 samples: jasper, hematite,
tale, pyrite, and graphite. For each sample, write down its color, streak it on the provided
porcelain plate, record its streak color and its luster (the way it reflects light). Pick the luster
from: metallic, sub- manual- open it to the mineral chapter for more identification clues.