What is the symbol for:
Potassium
Hydrogen
Sodium
Calcium
Sulfur
Oxygen
Carbon
Lithium
Manganese
Tin
Solution: Activate radio button Name and compare push button symbols by edit field names.
1.2 Periodic Table - Names
Find names for following symbols:
Br
Sn
Ba
H
Cl
C
P
Al
Si
K
Fe
Pb
Solution: Activate radio button Name and compare edit field names by push button symbols.
1.3 Periodic Table - Atomic number
Find the atomic number of:
Uranium
Lead
Phosphorus
Zinc
Tin
Iodine
Nitrogen
Oxygen
Sodium
Neon
Boron
Chromium
Solution: Activate radio button Atomic number.
1.4 Periodic Table - Acid-base properties (oxides)
Find the properties (acid-amph.-basic) for the oxides of the following elements:
Sulfur
Potassium
Chlorine
Manganese
Fluorine
Aluminium
Iodine
Sodium
Boron
Nickel
Copper
Lithium
Solution: Activate radio button Acid-base properties..
1.5 Periodic Table - Phase/state:
Where can we locate the gases in the periodic table.
Solution: Activate radio button Phase and search for "Gas" in the edit fields.
1.6 Properties - Isotopes
Find the number of stable isotopes and their abundance:
Hydrogen
Carbon
Sodium
Tin
Solution: Select push buttons H, C ... and activate radio
button Stable
isotopes in "Properties".
1.7 Properties - History
Oxygen: Explain the bright red and yellow-green colors of the Aurora
Hydrogen: How many stable and unstable hydrogen isotopes exist. What are their names ?
Uranium: What uranium isotope causes fission (nuclear energy).
Platinum: What will happen if platinum is inserted in an oxygen-hydrogen atmosphere ?
Nitrogen: Find atmospheric vol.% of nitrogen. Determine formula: ammonia, potassium nitrate and ammonium nitrite.
Carbon: Name three allotropic forms of carbon ?
Helium: Describe the use of liquid helium.
Solution: Select push buttons O, H ... and activate radio button History in "Properties" .
1.8 Explain the relationship/connection: electronegativity/atomic radius:
Solution: Alter between the radio buttons Elecronegativity/Atomic radius.
1.9 Decide max/min values of:
Electronegativity
Atomic radius
Melting point
Boiling point
Electrical conductivity
Thermal conductivity
Number of stable isotopes
Density
Solution: Activate Graphics in the periodic table. Use radio buttons (electronegativity...) and search for max/min values.