Sodium is a chemical element with the chemical symbol Na. It is an alkali metal with the atomic number 11. We know that substances are made up of various atoms, and each atom has a specific chemical identity. It (an atom) is said to be chemical element, and has all the characteristics of that element.
Tax season discounts available now. DNA paternity testing determines the biological father of a child. We all inherit our DNA from our biological parents â half from our mother and half from our father. A DNA paternity test compares a childâs DNA pattern with that of the assumed father to determine if there is a match.
Collect the DNA for paternity testing. 1  Once you have all of the requested information filled out on the sample envelope, you then open one set of swabs. 2  You will do the same thing with swabs #2 and #3. 3  The envelope may get wet from the saliva that tends to come with the DNA sample.