3. Fill the paint cup about 2/3 of the way with paint and lock it onto the sprayer. Whether the spray cup attaches to the bottom of the sprayer with a clamping assembly and hooks or screws on, be sure to attach it securely; you do not want the spray cup to drop off suddenly while in use.
The periodic table provides a useful framework for analyzing chemical behaviour, and is widely used in chemistry and other sciences. Dmitri Mendeleev published in 1869 the first widely recognized periodic table. He developed his table to illustrate periodic trends in the properties of the then-known elements.
The periodic table is a chart that that shows how chemical elements are related to each other. Phosphorus is part of the nitrogen family along with nitrogen, arsenic, antimony, and bismuth. Phosphorus was first discovered in 1669 by German physician Hennig Brand (ca. 1630-92). Brand is somewhat famous in chemistry.