PLEASE HELP QUICK ITS DUE IN 5 MINUTES Which of the statements below is a true statement about the period table?
The periodic table allows a chemist to predict the properties of an element.
The names of the elements on the periodic table are all based on English, German and Spanish
words.
The periodic table lists the elements in order of the number of neutrons in the nucleus.
The periodic table shows all the molecules that exist.

Stage in which a typical star has completely stopped fusion

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.