The periodic table of elements is a chemistry reference that lists elements by increasing atomic number, which typically correlates to their atomic masses. The atomic number increases from left to right as well as from top to bottom. Each of the rows on the table is a period.
There are 118 known elements on the periodic table. The most recently discovered element, Ununoctium, was first reported by Russian scientists from Dubna in 2002.
A "who are you?" quiz is an online test that asks you questions about yourself and gives you answers about your personality, your interests, your work style, your compatibility with others, and other aspects about you.
An AZ quiz is an Accelerated Reader quiz created by Renaissance Learning, Inc. The purpose of the Accelerated Reader quiz is to determine students' reading levels, to evaluate whether students have read a particular book and to suggest age-appropriate book titles for students.
While the invention of the periodic table of elements is commonly attributed to Dmitri Mendeleev, the atomic weight sorting system was first conceptualized in 1862 by Alexandre-Emile Béguyer de Chancourtois. Despite releasing his table seven years before Mendeleev, Chancourtois' status as a geologis
As of 2015, periodic tables of the elements can be downloaded from Los Alamos National Laboratory, Science Geek and WebElements. All three offer downloads in PDF format.
About.com and Ptable.com provide periodic tables that include all element names. The website Periodictable.com also provides a periodic table with element names and a number of identifying pictures.
Group 6 does not have a unique name; it belongs to a larger family known as the transition metals. The transition metals include Groups 3 through 12 on the periodic table. Group 6 contains the elements chromium, molybdenum, tungsten and seaborgium.
While there are several different "best friend" quizzes around, the common theme is figuring out how close you and your best friend really are. The quizzes range from serious to silly, and can be found on various websites such as BuzzFeed.com and Seventeen.com.
Past life quizzes claim to provide a description of who quiz-taker was in a past life. Most quizzes make this claim for entertainment purposes and produce past lives that include famous people from the past, as well as comedic descriptions of how people once lived.