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Magnesium
Parent: Kyle Preston
The Birth
• First Born by Sir
Humphry Davy
• Born in 1808
Physical Description
• Magnesium is a metal, it is actually an
alkali-earth metal!
• Little Mag, has 12 protons, 12 neutrons,
and 12 electrons
• Mg:
Properties
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•
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Melting point: 650 degrees Celsius
Boiling point: 1090 degrees Celsius
Specific heat: 1.05 kJ
Density: at 239K – 1.738g/cm^3
Chemical Properties
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•
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2 valence electrons
Oxidation number – 2
Reactivity – highly reactive
Magnesium nitrate, Magnesium methoxide
and Magnesium fluoride, are compounds
of magnesium
Positives and negatives
• Magnesium, when burned, produces a
bright light, so if you are trapped in a dark
cave, and have magnesium to burn, you
will have light, however, it burns really fast,
so the light will not last long.
• Low amounts of magnesium in blood can
cause health issues.
Radium
Parent: Kyle Preston
The Birth
• Pierre and Marie Curie discovered Radium
• Discovered December 26th 1948
Physical Description
• Radium is an Alkali – Earth Metal
• Radium has 88 protons, and 138 neutrons,
and 88 electrons
• Ra:
properties
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Melting point – 700 degrees Celsius
Boiling point – 1737 degrees Celsius
Cubic Crystal Structure
Density – at 293K – 5g/cm^3
Chemical Properties
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Valence Electrons – 2
Oxidation number – 2
Reactivity – highly reactive
Compounds are: Radium Bromide,
Radium chloride, and Radium Iodide
Strontium
Physical Description: This metal has 38 protons,
38 electrons, and has a Lewis Dot Diagram such as
this;
It also has a Bohr Diagram that looks like this;
Guardian: Adair Crawford
Birthplace:
Date of Berth: 1790
Gender: Metal
Positive Attributes: Reduces the risk of
dental cavities.
Negative Attributes: Can cause blood clots.
Physical Description Continued: Its density is 2.64
grams per cubic centimeter, its boiling point is
1655K, its melting point is 1050K, its specific heat
is 0.38 J g^-1 K^-1, and its heat conductivity is
5X10 sm^-1.
Chemical Description: Its valence number is 2, its
ion is 1.12, oxidation number is 2, its reactivity is
strontium sulfide, and can compose the three
compounds of strontium iodide, strontium oxide
and strontium fluoride.
Barium
By: Kelsey Nelson
Genetics
• Son of Sir Humphry Davy
• Birthplace: London,
1808
• Gender: alkaline earth
metal
• Physical attributes: kind
of chubby, with 56
protons and electrons,
and 81 neutrons
More About Barium
Lewis Dot Diagram
Bohr Diagram
Physical Features
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Density: 3.59g/cc @ 300K
Boiling Point: 2171K 1898°C 3448°F
Melting Point: 1002K 729°C 1344°F
Specific Heat: 0.204J/gK
Heat of vaporization: 142kJ/mol
Chemical Features
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Valence number: 7 valence electrons
Ions: +2
Maximum Oxidation Number: 2
Minimum Oxidation Number: 0
Compounds: Oxygen, Sulfur, and
Tellurium
Positive Attributes
• In Humans:
–
–
–
–
–
Blood/mg dm-3: 0.068
Bone/p.p.m: 3-70
Liver/p.p.m: 0.04-1.2
Muscle/p.p.m: 0.09
Daily Dietary Intake: 0.6-1.7 mg
**Total Mass In Avg. 70kg human: 22 mg
• USES: sparkplugs, vacuum tubes, fireworks,
fluorescent lamps. Insoluble barium sulfate is
used for body imaging
Negative Attributes
• Very flammable
• Highly poisonous.
Beryllium
• Parent
– The French Chemist LouisNicholas Vauquelin
• Birth place
– Beryllium was discovered
in 1797 found in emeralds
located in the mountains of
California and in France
• Gender
– Beryllium is a metal found
under the category of
Alkaline Earth Metals.
Beryllium
• Physical Properties
– Number of Protons: 4
– Number of Electrons:
4
– Density : 1.848 g/cm
– Melting Point 1287 °C
– Boiling Point 2470 °C
Specific Heat Capacity
1.82 J
– Thermal Conductivity
2.00 W/cm K
Beryllium
• Chemical Description
– The Valence number is 2
– Ion is positive 2
– Maximum oxidation
number is 2
– Minimum oxidation number
is 0
– There is no reaction
between Beryllium and
water or steam (including
when at a red hot).
Beryllium
• Beryllium has positive attributes such as being
used in nuclear reactor to absorb neutrons. It is
being used in radiation windows for x-ray tubes.
The element also is under research to find out if
it could be used as a new mental to construct
aircrafts because of it being so light-weight.
• The negative attributes include the fact that
beryllium and its salts are poisonous and
carcinogenic.
Calcium
• Parent
• The first discoverer of this
element were the Romans
Birth Place and Date
• Sir Humphry Davy was the
first to declare Calcium as
a metal in 1808 A.D.
Gender
• Calcium is a metal under
the group of Alkaline Earth
Metals.
Calcium
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Number of Protons: 20
Number of Electrons: 20
Density: 1.55 g/cm3
Melting Point: 842 °C
Boiling Point: 1484 °C
Specific Heat Capacity is
0.650 J/g°C
• Thermal Conductivity
2.00 W/cm K
Calcium
• Chemical Description
– The Valence Number
is 2
– Ion is positive 2
– Oxidation States is 2
– Calcium can react with
water to make calcium
Hydroxide.
Calcium
• Calcium has positive attributes such as getting
rid of sulfur, carbon, and oxygen from alloys. It is
also an important aspect to the water we drink.
Without this element there would not be the
removal of arsenic and animal waste in drinking
water.
• A negative attribute to calcium would be if
someone has taken in a lot of calcium more than
needed, remaining calcium can be created into
kidney stones.