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 Element Report Helium: Symbol: He Atomic Number: 2 Atomic Mass: 4.002602 amu Melting point: -272.0 degrees C Boiling point: -268.6 degrees C Number of Neutrons: 2 Number of Protons or electrons: 2 Classification: Noble Gas Color: Colorless Crystal Structure: Hexagonal Fun Facts about Helium The reason I picked Helium was because I was always interested in the fact that helium makes your voice sound funny! Helium was discovered first on the sun before it was found on the earth. Pierre Janssen a French astronomer realized a yellow line in the suns spectrum while studying a total solar eclipse in 1868. Sir Norman Lockyer saw that this line could not be produced by any element known at the time. A new element on the sun was responsible for this weird yellow emission! Lockyer named this element Helium! Later on Sir William Ramsay discovered it on earth! Helium has plenty of uses its uses are balloons, and deep sea diving! Helium is obtained from natural gas deposit and air as I explained earlier! Helium has the energy level of 1. Helium’s first energy level is 2. Helium is also the second most abundant element in the entire universe! Helium has the group number 18. This is all I have to say about helium! I hope you learned a lot about this amazing element! Thank you. I hope you enjoyed! Magnesium: Symbol: Mg Atomic Number: 12 Atomic mass: 24.305 amu Melting Point: 650.0 degrees C Boiling Point: 1107.0 degrees C Color: grayish Classification: Alkaline Earth Number of neutrons: 12 Number of protons/ Electrons: 12 Crystal Structure: Hexagonal Fun Facts The reason I picked magnesium is magnesium is because I haven’t heard anything about it and it sounded interesting! So I decided to use it for my element report! Let’s learn a few fun facts about Magnesium! Magnesium was discovered 1808 by Sir Humphrey Davy. Sir Humphrey Davis is well known for his discoveries. Magnesium’s number of energy levels is 3. Its first energy level is 8. What’s cool is that it also has a third energy level that is 2. Its usual uses are for airplanes and missiles. It is obtained by sea water. Those are all the fun facts about Magnesium. Thank you so much! I hoped you enjoyed! I also hope you learned a lot! Oxygen Name: Oxygen Symbol: O Atomic Number: 8 Atomic Mass: 15.9994 amu Melting Point: -218.4 °C -361.12 °F Boiling Point: -183.0 °C -297.4 °F Number of Neutrons: 8 Number of Energy Levels: 2 First Energy Level: 2 Second Energy Level: 6 Fun Facts The reason I picked oxygen was because it is one of the most important elements! Without it we would be able to live! Let’s learn some things about oxygen! As we all know we practically all discovered oxygen, but one of the first people who actually went and looked at it more was Joseph Priestly. Joseph started looking and getting more into the concept in which we call; “air” that happened around 1774. Wow that was a long time ago. Of course the usual use of oxygen is that it supports life. We usually obtain oxygen from liquid air in which helps us breathe. I hoped you learned a lot about this wonderful element that helps us live! Thank you hope you enjoy! The websites I used were: www.chemicalelements.com and www.education.jlab.org and www.google.com Article posted May 21, 2012 at 09:15 AM • comment • Reads 298 • Return to Blog List Add a CommentPosted Comments |
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