The Structure of Atoms

-
The Structure of Atoms  
By: Alzahraa Alrubaiey 

Atoms are the basic building block of matter. So, if it wasn’t for atoms we would not have all this matter. We need atoms, they are used to create all of the molecules around us. There are almost 120 elements that can be found in the molecules we know. Atoms are so tiny that we ca not see them with the naked eye. Atoms cannot be created or destroyed. Every solid, liquid, gas, and plasma is composed of neutral or ionized some.  
Atoms consist of three basic particles, they are protons, electrons, and neutrons. The nucleus the center of the atom contains the protons which are positively charged. While the neutrons have no charge. The outermost region of the atom are called electron shells and contains the electrons which are negatively charged. The hydrogen atom contains one proton, one electron, and no neutrons. This determines using the atomic number and the mass number of the element.  

Every element in the periodic table is unique, every element has its own atomic number, and atomic mass. In the Rutherford-Bohr model the particles of the atom as they rotate around the nucleus in a cloud. The number of protons, neutrons, and electrons in an atom can be determined from a set of rules. The number of protons in the nucleus of the atom is equal to the atomic number. The number of electrons in a neutral atom is equal to the number of protons.  
This structure of elements can be used by scientists in many different ways. x-rays allowed scientists to measure the size of the atom. The x-rays are small enough to determine the elements. Scientists use a lot of different models to determine these small atoms. There are three important models, plum pudding, Rutherford-Bohr, and Rutherford model. In the future these models can help scientist develop more technology that will help them to understand atoms much better.  

Links To Articles 

Comments

Post a Comment

Popular posts from this blog

Force and Motion

-
Image
Zach Fluck Science blog Force and Motion Blog Sir Isaac Newton was an English astronomer, physicist, and mathematician, born on December 25, 1642. He died on March 20, 1727, most likely from mercury poisoning or old age. However, during his life, he made several contributions to modern science and advanced our understanding of physics tremendously. Arguably his most famous discovery was gravity. However, he had to use his 3 laws of motion to make this accomplishment. Newton understood that an object at rest will stay at rest, unless acted on by unbalanced forces. Therefore, if an object such as an apple is in a resting position there must be a force to make the apple fall to the ground. He discovered this invisible force to be gravity. At a young age Newton was removed from school to be a farmhand. Despite returning to school the turning point in his live was he left his hometown to attend Cambridge University. After attending Cambridge he returned to his hometown where his observat...
Read more

Chemically termolecular reactions: The fourth class of chemical reactions

-
Image
Chemically termolecular reactions: The fourth class of chemical reactions Maisy Chase Up until now only three classes of chemical reactions were known. Unimolecular reactions occur when one reactant undergoes bond breaking or forming to create different products. Bimolecular reactions are where two reactants collide and then undergo bond breaking or forming. Termolecular association reactions, where two reactants collide to form a whole with a new chemical bond between the two reactants. A third molecule, known as the bath gas, then removes some of the internal kinetic energy of that molecule to stabilize it. Researchers from Columbia University , led by Assistant Professor of Mechanical Engineering Michael P. Burke, have discovered a fourth class of chemical reaction known as “chemically termolecular reactions.” This involves the breaking and bonding of three molecules. The team showed that these chemically termolecular reactions not only are major chemical pathways but also ...
Read more

Light waves, Mechanical Waves, and Radiation

-
Image
  By Marc Gabay Waves are a very interesting topic, if you take the time to think about it thoroughly; for example, light waves or radiation. The kinds of light waves from our sun are visible light ways. On average, it takes roughly 8 minutes and 20 seconds for the sun's light rays to reach Earth. That being said, if the sun were to suddenly disappear out of the universe, it would take a little more than 8 minutes before we realized it was getting a bit chilly. Light travels fast, however space is so big and vast that it takes many years even for distant stars, galaxies, and/or planets to even come into sight. As a result of this, as we look onward into space, we're really looking back into time. Light waves are very interesting this way. Next, Another way that light waves are interesting is that they affect the human body in both positive and negative ways. These types of light waves can be UV light waves or infrared waves. Infrared radiation is pretty much just heat. Thi...
Read more