.86km is the correct answer
Answer:
Summary. To summarize, the periodic table is important because it is organized to provide a great deal of information about elements and how they relate to one another in one easy-to-use reference. The table can be used to predict the properties of elements, even those that have not yet been discovered.
The answer is Na+ Cl- and F+. Hope this helps!!!
Answer:
16
Explanation:
The proton number is always the number in the corner of the box on a periodic table
Answer:
It's a soft metal, reactive and with a low melting point, with a relative density of 0,97 at 20ºC (68ºF)
