Gang activity editorial Essays - Crime, Criminology, Gang

Gang activity editorial Essays - Crime, Criminology, Gang Today, there is a great concern about gang activity and youth violence. Every day, we can open a newspaper or turn on the evening news and see that another child or victim was killed in gang or youth related violence. Teenage crime and violence has existed for many years. Many people have become more aware of the violence committed by today's youth because of the media coverage of the viciousness of these crimes. The public is also aware of the new breed of criminal. Juvenile gangs have existed for many years. In the past, gang members fought with fists, brass knuckles and sticks. Today's gangs have better weapons, including sophisticated automatic weapons and they are prepared to use these weapons. The gangs usually come from the poorer areas of the inner cities, which was the case for even the earliest known gangs. Gangs and youth violence has always existed, but the increased interest and concern in their activities has emerged because of the increasing violence and death toll on our youth. New York City was the first city to have serious problems with gang- related activity because it was the first stop for many new immigrants entering the United States. Search of a better way of life immigrants created gangs. Even back then people joined gangs to feel a sense of safety even though it was the total opposite. Gangs attacked people who ventured into their neighborhood and attacked, robbed or pick-pocketed them and more risking their life every time. After immigrants entered the United States more youth gangs were formed. The poorer neighborhoods have became a breeding ground for these gangs. . In the 1920's there was a decrease in gang activity. Many factors contributed to the decrease in gang activity, but the main reasons were the police put many gang leaders in prison, immigration started to slow down, and opportunities for better jobs allowed recent immigrants to move out of the slums to better neighborhoods. Today, we see an increase in gang activity. Some of these gangs are still running. we are seeing violence by large groups of teenagers that have joined together, sometimes not even knowing each other and a kind of mob psychology takes over, where there is sometimes a frenzy of violence. In 1989, a sixteen year old black youth was beaten by a gang with bats in Bensonhurst, Brooklyn, when he went to purchase a car. In 1986, Howard Beach, Queens, eleven white youths beat and yelled racial epithets at two black men that had entered their neighborhood. One black was beaten by the group and the other was chased onto a highway were he was struck and killed. My point is gangs are very much alive and they will do anything to get what they were taught across. One big reason why these youths get caught up in this loop is to receive a sense of power but there are other ways then joining a gang.

Atomic Mass From Atomic Abundance Chemistry Problem

Atomic Mass From Atomic Abundance Chemistry Problem You may have noticed the atomic mass of an element isnt the same as the sum of the protons and neutrons of a single atom. This is because elements exist as multiple isotopes. While each atom of an element has the same number of protons, it can have a variable number of neutrons. The atomic mass on the periodic table is a weighted average of the atomic masses of atoms observed in all samples of that element. You can use the atomic abundance to calculate the atomic mass of any element sample if you know the percentage of each isotope. Atomic Abundance Example Chemistry Problem The element boron consists of two isotopes, 105B and 115B. Their masses, based on the carbon scale, are 10.01 and 11.01, respectively. The abundance of 105B is 20.0% and the abundance of 115B is 80.0%. What is the atomic mass of boron? Solution: The percentages of multiple isotopes must add up to 100%. Apply the following equation to the problem: atomic mass (atomic mass X1) Â · (% of X1)/100 (atomic mass X2) Â · (% of X2)/100 ...where X is an isotope of the element and % of X is the abundance of the isotope X. Substitute the values for boron in this equation: atomic mass of B (atomic mass of 105B Â · % of 105B/100) (atomic mass of 115B Â · % of 115B/100)atomic mass of B (10.01Â · 20.0/100) (11.01Â · 80.0/100)atomic mass of B 2.00 8.81atomic mass of B 10.81 Answer: The atomic mass of boron is 10.81. Note that this is the value listed in the periodic table for the atomic mass of boron. Although the atomic number of boron is 10, its atomic mass is nearer to 11 than to 10, reflecting the fact that the heavier isotope is more abundant than the lighter isotope. Why Arent Electrons Included? The number and mass of electrons is not included in an atomic mass calculation because the mass of the electron is infinitesimal compared to that of a proton or neutron. Basically, electrons dont significantly affect the mass of an atom.