Which of the following are physical properties of non-metals? select all that apply

You are performing an experiment in a lab to attempt a new method of producing pure elements from compounds. the only problem is that you do not know what element will form. by your previous calculations you know that you will have 6.3 moles of product. when it is complete, you weigh it and determine you have 604.4 grams. what element have you produced?

Is this a single replacement reaction or there is no

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife