If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. The name fluorine is derived from the mineral fluorite which comes from the Latin word “fluere” meaning “to flow.” The name was suggested by English chemist Sir Humphry Davy. Fluorine has one stable isotope, fluorine-19. It is the only form that fluorine occurs in naturally. Copyright ©2022 Answers, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.

For the compound to be neutral overall, as it must be, tin must assume a charge of +2. We need to indicate that in the name, since tin could assume a charge of +4 . So, the full name of SnCl2 is “tin chloride,” where the “” indicates a formal charge of +2 on the tin atom.

This compound has an essentially square structure with alternating sulfur and nitrogen atoms. Like S4N4, it is sensitive to shock and can explode when heated to temperatures higher than 30 °C (90 °F). At 25 °C (80 °F), S2N2 slowly polymerizes through a ring opening mechanism to polythiazyl, x. This rather amazing material has a bronze colour, a metallic lustre, and the electrical and thermal conductivity of a metal.

We will need two nitrate ions to balance the charge on each calcium ion. The formula for nitrate must be enclosed in parentheses. Thus, we write \(\ce\) as the formula for this ionic compound.

Chemistry is a very tricky subject and some students may find it difficult but if they choose the right pattern to study then they will see that the topics will be easy for you. Dhafi Quiz Is an online learning educational site to provide assistance and insight to students who are in the learning stage. They will be able to easily find answers to questions at school.We strive to publish Encyclopedia quizzes that are useful for students.

If treated with a reducing agent, such as LiAlH4 or even catalytic hydrogenation (Pd/C , H2) organic azides can be reduced to primary amines, liberating N2 in the process. Potassium ions have a charge of 1+, while sulfate ions have a charge of 2−. We will need two potassium ions to balance the charge on the sulfate ion, so the proper chemical formula is \(\ce\). Molecular mass of nitride is similar to that of nitrogen and that is 14.

Iron (Fe2+), Sodium (Na+), Lead (Pb2+) are few examples of cations, while Fluoride (F-), Bromide (Br-), Iodide (I-), Nitride (N3-) and Hydride (H-) are examples of anions. Nitrogen is neither a cation nor an anion because it is an atom and atoms are electrically neutral. Compare and contrast what resource can best help you learn about the terrain in a particular area before you arrive? diffusion and effusion to learn the difference between the two. Review Graham’s law of effusion and understand how it can be used. Learn about these elements, what they have in common, the traditional uses of some of the more famous elements, and where to find them on the periodic table.